16:9 widescreen problems from digital TV recordings
Moderator: Ken Berry
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Rod.Sugden
16:9 widescreen problems from digital TV recordings
V10 trial, recommended by a friend using V9 who says widescreen is a bit ropey in V9 but "they must have fixed it by V10"
Digital TV (Freeview in the UK) is recorded straight to my PC hard disk as an mpeg2 file (suffix mpg) using a PCI digital tuner card.
The programme is transmitted widescreen and if I play the mpeg2 file through either the tuner cards software or Windows media player it plays 16:9 perfectly.
I go straight to "edit" in VideoStudio (as I don't need to capture anything) and pull the file into the edit window to trim it - right click gives properties
MPEG-2 Video
Upper field first
xxx frames
24bits 720 X 576 16:9
25 f/s, Variable bit rate
and all audio prperties as expected.
Note it clearly states 16:9...
I trim it, drag it to the timeline and go straight to "share" (I don't need any of the other features) and go straight to "create disk"....
Now I know from searching the forum that the advise for earlier versions is DON'T go straight to making the disk but I assume all those bugs are fixed in V10 and that's why there is a preview window to check it's right before making coasters...
Anyway, as soon as the preview window comes up I spot at the bottom, a little TV icon saying 4:3 !!!!
NOTE, the preview window is clearly showing it 16:9 with black bar top and bottom (I understand earlier versions didn't).
I click on the little gearwheel and am told,
MPEG files
24 bits, 720 x 576, 25 fps
Frame-based
(DVD-PAL), 4:3
Video data rate: Variable (Max. 7000 kbps)
Audio data rate: 256 kbps
Dolby Digital Audio, 48 KHz, 2/0(L,R) .....
So how did it suddenly become 4:3 ????
And perhaps relevant, why is it now "frame based" ???
If I then click the little TV icon to change it to 16:9 it warns me "This action will change the display aspect ratio of the project and some information will be lost. Continue?"
I get the same warning if I change it in menu from the gearwheel icon.
From the "change mpeg settings" menu there is nothing that matches my original but I have the "DO NOT CONVERT COMPLIANT MPEG FILES" ticked anyway as why would I want to convert it when the original is correct. The only two possible choices from the menu of "HQ or GG 16:9 dolby digital" imply a conversion to fixed bit rate which I dont want. All I'm expecting VideoStudio to do is restructure the mpeg2 file into the vob format for a DVD, surely not a difficult task ???
Anyway, the warning is valid because if I set it to 16:9 as it should be, although the preview is perfect (and 16:9) the resultant DVDs have lots of dropped frames and frame order errors.
I also get the "this is going to take a very long time warning" (and it does) as VideoStudio systematically dismantles a perfectly good mpeg2 file and reassembles it in the wrong order with bits missing !!! It also manages to increase the size significantly, original mpg was say 1.7G for about 45mins, VideoStudio creates about 2.4G of vob etc.
Am I doing something wrong ???
In the project properties box I get
PAL (25 fps)
MPEG files
24 bits, 720 x 576, 25 fps
Lower Field First
(DVD-PAL), 16:9
Video data rate: Variable (Max. 8000 kbps)
LPCM Audio, 48000 Hz, Stereo
The obvious difference is Lower Field First
Should I be changing this first every time to match the mpg file before I bring it in ???
It will be my next "experiment" but I'm running out of disks .....
Digital TV (Freeview in the UK) is recorded straight to my PC hard disk as an mpeg2 file (suffix mpg) using a PCI digital tuner card.
The programme is transmitted widescreen and if I play the mpeg2 file through either the tuner cards software or Windows media player it plays 16:9 perfectly.
I go straight to "edit" in VideoStudio (as I don't need to capture anything) and pull the file into the edit window to trim it - right click gives properties
MPEG-2 Video
Upper field first
xxx frames
24bits 720 X 576 16:9
25 f/s, Variable bit rate
and all audio prperties as expected.
Note it clearly states 16:9...
I trim it, drag it to the timeline and go straight to "share" (I don't need any of the other features) and go straight to "create disk"....
Now I know from searching the forum that the advise for earlier versions is DON'T go straight to making the disk but I assume all those bugs are fixed in V10 and that's why there is a preview window to check it's right before making coasters...
Anyway, as soon as the preview window comes up I spot at the bottom, a little TV icon saying 4:3 !!!!
NOTE, the preview window is clearly showing it 16:9 with black bar top and bottom (I understand earlier versions didn't).
I click on the little gearwheel and am told,
MPEG files
24 bits, 720 x 576, 25 fps
Frame-based
(DVD-PAL), 4:3
Video data rate: Variable (Max. 7000 kbps)
Audio data rate: 256 kbps
Dolby Digital Audio, 48 KHz, 2/0(L,R) .....
So how did it suddenly become 4:3 ????
And perhaps relevant, why is it now "frame based" ???
If I then click the little TV icon to change it to 16:9 it warns me "This action will change the display aspect ratio of the project and some information will be lost. Continue?"
I get the same warning if I change it in menu from the gearwheel icon.
From the "change mpeg settings" menu there is nothing that matches my original but I have the "DO NOT CONVERT COMPLIANT MPEG FILES" ticked anyway as why would I want to convert it when the original is correct. The only two possible choices from the menu of "HQ or GG 16:9 dolby digital" imply a conversion to fixed bit rate which I dont want. All I'm expecting VideoStudio to do is restructure the mpeg2 file into the vob format for a DVD, surely not a difficult task ???
Anyway, the warning is valid because if I set it to 16:9 as it should be, although the preview is perfect (and 16:9) the resultant DVDs have lots of dropped frames and frame order errors.
I also get the "this is going to take a very long time warning" (and it does) as VideoStudio systematically dismantles a perfectly good mpeg2 file and reassembles it in the wrong order with bits missing !!! It also manages to increase the size significantly, original mpg was say 1.7G for about 45mins, VideoStudio creates about 2.4G of vob etc.
Am I doing something wrong ???
In the project properties box I get
PAL (25 fps)
MPEG files
24 bits, 720 x 576, 25 fps
Lower Field First
(DVD-PAL), 16:9
Video data rate: Variable (Max. 8000 kbps)
LPCM Audio, 48000 Hz, Stereo
The obvious difference is Lower Field First
Should I be changing this first every time to match the mpg file before I bring it in ???
It will be my next "experiment" but I'm running out of disks .....
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Trevor Andrew
Hi Rod
Creating a Video File first is the recommended procedure. Not only is it a sensible way to go, it takes no longer to complete. You have more control over the project, and can view the movie before burning, using Windows Media player or similar.
As for the black border top and bottom, these were shown in VS9 and may be 8. I have no problems with them, they are the unused areas of the preview screen.
1 / Start a NEW project.
2 / File / Preferences/ tick ‘show messages when inserting first video….’
3 / Insert / drag your clips to the timeline.
4 / A warning window prompts you to change the project settings
5 / Click details, look at your video file properties, if they indicate 16:9 as they should
6 / Select YES.
Finish editing your clips.
7 / Share create video file, ‘Same As’ First Clip or Video Project as they are the same (4 above).(render should be relatively quick)
8 / Render the video project to a new file.
9 / Start a NEW project.
10 / Insert the new video file to the timeline.
11 / A warning window prompts you to change the project settings
12 / Click details.
13/ Select YES.
14 / Delete the file from the timeline
15 / Share Create Disc
16 / Add Video File using the file made in 8 above.
17 / You should not have to change any other property settings.
18 / Create a DVD folder to test the burn process. (This will save on Discs)You should not see the message (this is going to take a very long time warning" )
Hope this helps
Trevor
Creating a Video File first is the recommended procedure. Not only is it a sensible way to go, it takes no longer to complete. You have more control over the project, and can view the movie before burning, using Windows Media player or similar.
As for the black border top and bottom, these were shown in VS9 and may be 8. I have no problems with them, they are the unused areas of the preview screen.
1 / Start a NEW project.
2 / File / Preferences/ tick ‘show messages when inserting first video….’
3 / Insert / drag your clips to the timeline.
4 / A warning window prompts you to change the project settings
5 / Click details, look at your video file properties, if they indicate 16:9 as they should
6 / Select YES.
Finish editing your clips.
7 / Share create video file, ‘Same As’ First Clip or Video Project as they are the same (4 above).(render should be relatively quick)
8 / Render the video project to a new file.
9 / Start a NEW project.
10 / Insert the new video file to the timeline.
11 / A warning window prompts you to change the project settings
12 / Click details.
13/ Select YES.
14 / Delete the file from the timeline
15 / Share Create Disc
16 / Add Video File using the file made in 8 above.
17 / You should not have to change any other property settings.
18 / Create a DVD folder to test the burn process. (This will save on Discs)You should not see the message (this is going to take a very long time warning" )
Hope this helps
Trevor
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EDIT: Trevor beat me to the punch, but I will post this anyway.
Funny you should mention this since not five minutes ago, while playing around with the burn module of VS10, I discovered the same thing (though not with digital TV captures -- just ordinary files). When I went into the burning module and clicked on the gearwheel icon, I was told the format which would be used for conversion would be:
MPEG files
24 bits, 720 x 480, 29.97 fps
Frame-based
(DVD-NTSC), 4:3
Video data rate: Variable (Max. 7000 kbps)
Audio data rate: 256 kbps
Dolby Digital Audio, 48 KHz, 2/0(L,R) .....
Now I live in a PAL country, and have set VS10 up accordingly, and certainly didn't want to burn something with NTSC properties, so I naturally went to change these properties using Customise. Only then I discovered that all the attributes relating to NTSC had been greyed out and so could not be changed using Change MPEG settings > Customise. I could, however, select 16:9 instead of 4:3, and that 'took' i.e. the above properties were changed to reflect 16:9, though everything else remained the same. I checked in Make Movie Manager and Share > Create Video File, and sure enough, everything was set correctly to PAL properties.
After momentarily thinking 'this is a bug', I then looked at the files I was playing with, which were merely ones which came with the program, and they turned out to be NTSC! So I then started a new project and inserted some PAL DV 4:3 captures I have just done. I jumped to the burning module (something I would not normally do, preferring the recommended procedure of first converting my project to a DVD-compliant MPEG. But I had originally wanted to test whether in fact VS10 can in fact jump this step with impunity.) And got exactly the same read-out as above, down to the unchangeable NTSC and frame-based.
So again I starting thinking this was a bug. But I went back, started a new project, and inserted some PAL DVD-compliant mpeg-2s in the timeline, and then went to the burning module. This time at least it showed PAL and the Customise button allowed me to select Lower Field First instead of Frame Based. This also happened when I started a new project with an empty timeline and opened the burning module and inserting the DVD-compliant mpeg-2.
Anyway, the lesson I draw from all this is the importance of getting your project settings right from the very beginning. And to do this, it is a good idea to select 'Show message when inserting first video in the timeline' in File > Preferences > General. And the message of course asks if you want the project properties to be the same as the first video you insert. Once I had done that, then later in the burning module, it correctly reflected my TV system (PAL) and PAL properties, though I still had to change the field order from Frame Based to Lower Field First. (And yes, the first thing I did after installing the program had been to change my Preference to have Lower Field First as my default Field Order!)
I am still not sure whether one can jump the recommended procedures with impunity, but I shall work -- and post -- on that question, separately. (Adding the rider that I am more than happy to continue using the recommended procedure, but no doubt others will want to know whether they can jump the important step.)
Funny you should mention this since not five minutes ago, while playing around with the burn module of VS10, I discovered the same thing (though not with digital TV captures -- just ordinary files). When I went into the burning module and clicked on the gearwheel icon, I was told the format which would be used for conversion would be:
MPEG files
24 bits, 720 x 480, 29.97 fps
Frame-based
(DVD-NTSC), 4:3
Video data rate: Variable (Max. 7000 kbps)
Audio data rate: 256 kbps
Dolby Digital Audio, 48 KHz, 2/0(L,R) .....
Now I live in a PAL country, and have set VS10 up accordingly, and certainly didn't want to burn something with NTSC properties, so I naturally went to change these properties using Customise. Only then I discovered that all the attributes relating to NTSC had been greyed out and so could not be changed using Change MPEG settings > Customise. I could, however, select 16:9 instead of 4:3, and that 'took' i.e. the above properties were changed to reflect 16:9, though everything else remained the same. I checked in Make Movie Manager and Share > Create Video File, and sure enough, everything was set correctly to PAL properties.
After momentarily thinking 'this is a bug', I then looked at the files I was playing with, which were merely ones which came with the program, and they turned out to be NTSC! So I then started a new project and inserted some PAL DV 4:3 captures I have just done. I jumped to the burning module (something I would not normally do, preferring the recommended procedure of first converting my project to a DVD-compliant MPEG. But I had originally wanted to test whether in fact VS10 can in fact jump this step with impunity.) And got exactly the same read-out as above, down to the unchangeable NTSC and frame-based.
So again I starting thinking this was a bug. But I went back, started a new project, and inserted some PAL DVD-compliant mpeg-2s in the timeline, and then went to the burning module. This time at least it showed PAL and the Customise button allowed me to select Lower Field First instead of Frame Based. This also happened when I started a new project with an empty timeline and opened the burning module and inserting the DVD-compliant mpeg-2.
Anyway, the lesson I draw from all this is the importance of getting your project settings right from the very beginning. And to do this, it is a good idea to select 'Show message when inserting first video in the timeline' in File > Preferences > General. And the message of course asks if you want the project properties to be the same as the first video you insert. Once I had done that, then later in the burning module, it correctly reflected my TV system (PAL) and PAL properties, though I still had to change the field order from Frame Based to Lower Field First. (And yes, the first thing I did after installing the program had been to change my Preference to have Lower Field First as my default Field Order!)
I am still not sure whether one can jump the recommended procedures with impunity, but I shall work -- and post -- on that question, separately. (Adding the rider that I am more than happy to continue using the recommended procedure, but no doubt others will want to know whether they can jump the important step.)
Ken Berry
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Rod.Sugden
Thanks both - So far I have learnt two things,
1 You're both keen on creating the DVD compliant file first rather than making coasters - I had read all previous comments on this but assumed a pretty preview pane was there in the final stage to equate to just that, ie see the final result and get that on the DVD..... obviously not !!!!
2 The importance of getting project settings right from the start, I'm pretty certain that's where I've gone wrong but didn't know I could select 'Show message when inserting first video in the timeline' and then be told I had set them wrong.
However, my experiment continues - I set the project video parameters first, ie, put the frames the other way around and this time I got the 16:9 icon, not 4:3 in the final stage. Everything seemed to match so went to burn and again got the "very long time" message.
I cancelled, went back and checked everything matched from project to my mpeg file and there is only one thing I CAN'T match, namely my file is VBR max 15000b/s and the highest project setting available is just over 8000.
So I set it running anyway and it's taking even longer !!!!
It also estimates the final size on DVD is now going to be 2.7G
I can't try any of your other suggestions until it finishes !!!!!
1 You're both keen on creating the DVD compliant file first rather than making coasters - I had read all previous comments on this but assumed a pretty preview pane was there in the final stage to equate to just that, ie see the final result and get that on the DVD..... obviously not !!!!
2 The importance of getting project settings right from the start, I'm pretty certain that's where I've gone wrong but didn't know I could select 'Show message when inserting first video in the timeline' and then be told I had set them wrong.
However, my experiment continues - I set the project video parameters first, ie, put the frames the other way around and this time I got the 16:9 icon, not 4:3 in the final stage. Everything seemed to match so went to burn and again got the "very long time" message.
I cancelled, went back and checked everything matched from project to my mpeg file and there is only one thing I CAN'T match, namely my file is VBR max 15000b/s and the highest project setting available is just over 8000.
So I set it running anyway and it's taking even longer !!!!
It also estimates the final size on DVD is now going to be 2.7G
I can't try any of your other suggestions until it finishes !!!!!
-
Trevor Andrew
-
Rod.Sugden
Hi Trevor,
I think this is the key - I missed part of the info in my first post,
The file (clip) is
MPEG-2 Video
Upper field first
xxx frames
24bits 720 X 576 16:9
25 f/s
Variable bit rate (MAXIMUM 15000kbps)
So, even when I get all the other project settings right, Ulead can't deal with a high quality mpeg-2 stream ????
It seems it has to spend ages dropping it to 8000kbps (maximum) ????
The process just finished and this time I don't have a coaster, it seems to play OK.
This is bizzare - although the original file might have a maximum bit rate of 15000k (I missed the "k" off earlier posts), the average must be 4-5000kbps based on the original 1.7G file size for 45mins.
So why does the encoding give me a 2.7G file size for the same 45mins ??? Has it artificially increased the bit rate to 8000 ??? ie, "rendered" it to a fixed bit rate, the maths would imply so. If so, not only will it have lost the quality on the few bits that might exceed 8000 in my stream, but it will have introduced "noise" on the slower parts !!!
Current UK digital (terrestrial) transmissions, as I understand it, uses a form of statistical multiplexing on the transport streams so any "channel" that has fast action can grab a higher bit rate on the stream than a slow action channel, that presumably is why the mpeg-2 protocol used allows for a MAXIMUM of 15000. But this is only for "standard" TV which is only 576i - when we get HDTV (whether it is 720p or 1080i) the data rate will need to quadruple.
So, if the answer to my problem is that Ulead can't handle the mpeg-2 stream from current digital TV, then it certainly isn't "HD ready" !!!
In fact I'm totally confused now as it claims to be able to make HD DVDs but the highest setting in the project setting menu is the one I'm using for resolution of 720 (wide) X 576 (lines) - HD DVD surely requires 1080 X 720 or even 1300something X 720 (and a much higher bitrate) ????
Confused....
I think this is the key - I missed part of the info in my first post,
The file (clip) is
MPEG-2 Video
Upper field first
xxx frames
24bits 720 X 576 16:9
25 f/s
Variable bit rate (MAXIMUM 15000kbps)
So, even when I get all the other project settings right, Ulead can't deal with a high quality mpeg-2 stream ????
It seems it has to spend ages dropping it to 8000kbps (maximum) ????
The process just finished and this time I don't have a coaster, it seems to play OK.
This is bizzare - although the original file might have a maximum bit rate of 15000k (I missed the "k" off earlier posts), the average must be 4-5000kbps based on the original 1.7G file size for 45mins.
So why does the encoding give me a 2.7G file size for the same 45mins ??? Has it artificially increased the bit rate to 8000 ??? ie, "rendered" it to a fixed bit rate, the maths would imply so. If so, not only will it have lost the quality on the few bits that might exceed 8000 in my stream, but it will have introduced "noise" on the slower parts !!!
Current UK digital (terrestrial) transmissions, as I understand it, uses a form of statistical multiplexing on the transport streams so any "channel" that has fast action can grab a higher bit rate on the stream than a slow action channel, that presumably is why the mpeg-2 protocol used allows for a MAXIMUM of 15000. But this is only for "standard" TV which is only 576i - when we get HDTV (whether it is 720p or 1080i) the data rate will need to quadruple.
So, if the answer to my problem is that Ulead can't handle the mpeg-2 stream from current digital TV, then it certainly isn't "HD ready" !!!
In fact I'm totally confused now as it claims to be able to make HD DVDs but the highest setting in the project setting menu is the one I'm using for resolution of 720 (wide) X 576 (lines) - HD DVD surely requires 1080 X 720 or even 1300something X 720 (and a much higher bitrate) ????
Confused....
-
Trevor Andrew
Hi
If you go to Share Create Video File there are a lot of template options one is:-
Pal Mpeg2 HD ……….
If you use the Tools / Make Movie Manager You should be able to create your own template to:-
MPEG-2 Video
Upper field first
xxx frames
24bits 720 X 576 16:9
25 f/s
Variable bit rate (MAXIMUM 15000kbps)
Make Movie Manager
Add
Browse your hard drive for your Mpeg2 file
This should copy the properties and create a template
Give it a name
The template will be in Share Create Video File near the ‘Custom’ template.
Trevor
If you go to Share Create Video File there are a lot of template options one is:-
Pal Mpeg2 HD ……….
If you use the Tools / Make Movie Manager You should be able to create your own template to:-
MPEG-2 Video
Upper field first
xxx frames
24bits 720 X 576 16:9
25 f/s
Variable bit rate (MAXIMUM 15000kbps)
Make Movie Manager
Add
Browse your hard drive for your Mpeg2 file
This should copy the properties and create a template
Give it a name
The template will be in Share Create Video File near the ‘Custom’ template.
Trevor
-
Trevor Andrew
-
Rod.Sugden
Trevor..... HELP !!!!
Everything you say now makes perfect sense but fails at the last hurdle.
Before I consider your latest post, following your previous ones, I set the preferences so it tells me project settings wrong, I've used the actual file to create a template for 15000kbps, I've trimmed my original file, dropped it into the timeline, got the message to reset the project, did it, went to share, creat FILE (instead of a disk) and it encoded in less than 2 minutes instead of 2 hours. Started a new project, put the new file in the timeline, got the message to swap project settings to match - all OK at this stage, both the clip AND the project had the correct settings for 15000kbps.
Now, whether I deleted it from the timeline and went to create disk and added the file, OR if I left it in the timeline and went to create disk, the next result is a bit random (I'v had 4:3 and NTSC a couple of times and sometimes 7000kbps) but usually, the properties have become
MPEG files
24 bits, 720 x 576, 25 fps
Lower Field First
(DVD-PAL), 16:9
Video data rate: Variable (Max. 8000 kbps)
Audio data rate: 256 kbps
Dolby Digital Audio, 48 KHz, 2/0(L,R)
Back to where I started.......
SO.... does your most recent post mean I can't have a 15000 kbps (MAX) file on a normal DVD ??? Even though I've created the templates etc....
It begins to make sense as the average bitrate for DVD is only about 5000 kbps (2hrs for 4.3/4.7G).
I need to research the DVD standards to see if this 8000 kbps limit is the DVD or Ulead !!!!
Thanks for all your help.
Rod.
Everything you say now makes perfect sense but fails at the last hurdle.
Before I consider your latest post, following your previous ones, I set the preferences so it tells me project settings wrong, I've used the actual file to create a template for 15000kbps, I've trimmed my original file, dropped it into the timeline, got the message to reset the project, did it, went to share, creat FILE (instead of a disk) and it encoded in less than 2 minutes instead of 2 hours. Started a new project, put the new file in the timeline, got the message to swap project settings to match - all OK at this stage, both the clip AND the project had the correct settings for 15000kbps.
Now, whether I deleted it from the timeline and went to create disk and added the file, OR if I left it in the timeline and went to create disk, the next result is a bit random (I'v had 4:3 and NTSC a couple of times and sometimes 7000kbps) but usually, the properties have become
MPEG files
24 bits, 720 x 576, 25 fps
Lower Field First
(DVD-PAL), 16:9
Video data rate: Variable (Max. 8000 kbps)
Audio data rate: 256 kbps
Dolby Digital Audio, 48 KHz, 2/0(L,R)
Back to where I started.......
SO.... does your most recent post mean I can't have a 15000 kbps (MAX) file on a normal DVD ??? Even though I've created the templates etc....
It begins to make sense as the average bitrate for DVD is only about 5000 kbps (2hrs for 4.3/4.7G).
I need to research the DVD standards to see if this 8000 kbps limit is the DVD or Ulead !!!!
Thanks for all your help.
Rod.
-
lancecarr
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Hi Rod, I am not going to totally jump in here as Trevor seems to have it under control but regarding the DVD standard you are about right. I think (from memory) the max bitrate is around 9800kbs. I have burned VBR at 9700kbps using Dolby audio but I think that is really the top end of the scale. Stand alone DVD players are going to have trouble dealing with those high bitrates anyway on a DVD burned in a computer and not pressed like a commercial DVD.
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Trevor Andrew
Hi Rod
HD is new and not many will have worked with it up to date, including me.
I think a HD Dvd will be a different disc compared to a normal Dvd type. (if one could define normal). So I do NOT think you will be able to burn a HD using your discs.
Afaik the HD properties have a different frame size to Mpeg 2 standard. (VS uses 1400 x 1080 for one of its templates.)
This poses the question as to your video file. Is it HD or just Mpeg 2 at 15000 kbps?
As it uses 720 x 576 I would assume mpeg 2.
If this is the case then you have little choice but to render to a lower bit rate.
I would use VS template Pal-DVD.
As lancecarr mentioned the max bit-rate for dvd is 9,800, Video Studio seems to limit at 8000 kbps.
Try this site for more info :-- http://www.videohelp.com/dvd
Ok
Just reflecting back you said (original mpg was say 1.7G for about 45mins)
At 15000 kbps that would produce a file at least 4.6Gb
You then rendered it to a lower bit rate, only to get a bigger file. This doesn’t make sense.
Are you sure your file is 15000 not 1500???????
Trevor
HD is new and not many will have worked with it up to date, including me.
I think a HD Dvd will be a different disc compared to a normal Dvd type. (if one could define normal). So I do NOT think you will be able to burn a HD using your discs.
Afaik the HD properties have a different frame size to Mpeg 2 standard. (VS uses 1400 x 1080 for one of its templates.)
This poses the question as to your video file. Is it HD or just Mpeg 2 at 15000 kbps?
As it uses 720 x 576 I would assume mpeg 2.
If this is the case then you have little choice but to render to a lower bit rate.
I would use VS template Pal-DVD.
As lancecarr mentioned the max bit-rate for dvd is 9,800, Video Studio seems to limit at 8000 kbps.
Try this site for more info :-- http://www.videohelp.com/dvd
Ok
Just reflecting back you said (original mpg was say 1.7G for about 45mins)
At 15000 kbps that would produce a file at least 4.6Gb
You then rendered it to a lower bit rate, only to get a bigger file. This doesn’t make sense.
Are you sure your file is 15000 not 1500???????
Trevor
-
Rod.Sugden
Hi all,
(Been out a while...)
It isn't "HD" just Mpeg-2 which Ulead interogates and says is 15,000 MAXIMUM kbps. I agree from a 1.7G file of 45 mins the average is only 5-6,000 kbps.
I didn't define it as 15,000 (MAXIMUM) - that's just how it comes off the digital TV transport stream when using a digital TV card and saving the native mpeg-2 to hard disk. I don't even know if all the "channels" are the same or even if every programme is the same - I know they use this thing called "statistical multiplexing" to make up the transport stream allowing channels to have varying bitrates depending on their motion content.
Trevor, I agree it doesn't make sense that if I was resticted on bitrate by VS then why should my file get larger. What worries me is the only logical explanation is that when VS couldn't deal with a MAXIMUM 15,000, but AVERAGE 5-6,000, it actually FIXED the bitrate at 8,000 when doing its own conversion and I lost the variable bitrate function (despite what the template said). The maths is about right for that. If so, it is a very "compromised" file as extra "padding" is being added to the lower bitrate parts of the file.
If the limit for DVD is 9,800 and digital TV transmits at up to 15,000 then I've lost - I'll never replicate the quality on a DVD, I'll just have to stick to recording to hard disk - Damn !!!!
Rod.
(Been out a while...)
It isn't "HD" just Mpeg-2 which Ulead interogates and says is 15,000 MAXIMUM kbps. I agree from a 1.7G file of 45 mins the average is only 5-6,000 kbps.
I didn't define it as 15,000 (MAXIMUM) - that's just how it comes off the digital TV transport stream when using a digital TV card and saving the native mpeg-2 to hard disk. I don't even know if all the "channels" are the same or even if every programme is the same - I know they use this thing called "statistical multiplexing" to make up the transport stream allowing channels to have varying bitrates depending on their motion content.
Trevor, I agree it doesn't make sense that if I was resticted on bitrate by VS then why should my file get larger. What worries me is the only logical explanation is that when VS couldn't deal with a MAXIMUM 15,000, but AVERAGE 5-6,000, it actually FIXED the bitrate at 8,000 when doing its own conversion and I lost the variable bitrate function (despite what the template said). The maths is about right for that. If so, it is a very "compromised" file as extra "padding" is being added to the lower bitrate parts of the file.
If the limit for DVD is 9,800 and digital TV transmits at up to 15,000 then I've lost - I'll never replicate the quality on a DVD, I'll just have to stick to recording to hard disk - Damn !!!!
Rod.
-
Rod.Sugden
Forgot to add - when I did it Trevor's way and got the template right and saved as a new file (not burning straight away) and imported the file back the properties were still VBR max 15,000 and the file was slightly smaller than the original equating exactly to the couple of minutes I'd trimmed off each end (because I recorded slightly too much). It only got bigger when VS encoded it to VBR 8,000 max, hence my suspicion VS just did it straight 8,000 hence upping the previos 5-6,000 AVERAGE.
Rod.
Rod.
- Ken Berry
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Rod -- I too am reluctant to come into this discussion at this late stage. But, from something else I have been playing around with, I am interested in the following. When you open the burning module from a clean timeline (i.e having closed your project), and after inserting your mpeg, AND selecting HD DVD in the burning module, what is shown when you click on the cogwheel icon second from bottom left in the burning screen, as being the 'MPEG Properties for File Conversion'? And what is shown if you don't choose HD DVD? And in either of them, can you actually edit the properties in that screen or are some of the properties greyed out?
Ken Berry
-
Rod.Sugden
Ken,
No worries about coming in late....
IF I select HD-DVD (which I wouldn't as I'm only trying to get a bit of digital TV on a STANDARD DVD)..... It gets really interesting.
MPEG files
24 bits, 1440 x 1080, 25 fps
Lower Field First
(HDDVD-PAL), 16:9
Video data rate: Variable (Max. 18000 kbps)
LPCM Audio, 48000 Hz, Stereo
So now I have a higher bit rate than the file needs !!!!
What is really interesting though, is the estimated disk usage has dropped back to the size of the original (trimmed) file at 1.58/1.69G for 44mins26secs.
If I choose standard DVD (4.7G), tonight I got
MPEG files
24 bits, 720 x 576, 25 fps
Frame-based
(DVD-PAL), 16:9
Video data rate: Variable (Max. 7000 kbps)
Audio data rate: 256 kbps
Dolby Digital Audio, 48 KHz, 2/0(L,R)
BUT THIS HAS VARIED !!!!
Usually I get
MPEG files
24 bits, 720 x 576, 25 fps
Lower Field First
(DVD-PAL), 16:9
Video data rate: Variable (Max. 8000 kbps)
Audio data rate: 256 kbps
Dolby Digital Audio, 48 KHz, 2/0(L,R)
ie, matching my original "project" settings.
Why it varies (I have had NTSC on a couple of occasions!) I don't know.
Also my estimated file size is back up to 2.29/2.46G
I can edit a few of the properties in HD-DVD (I can only have 1920X1080 or 1440X1080 frame size, can't customise, and I can change frame type) Aspect ratio also greyed out
This is bizzare, how can a 1440X1080 only need a 1.58/1.69 file size...
In (standard) DVD (reloaded again and now I have "normal" settings, not one of the random ones, I have customise available but only the standard frame sizes (max 720X576) and I have aspect ratio. File size back to 2.61/2.68 BUT, the best bit, under customise... (compression) I can now put the bitrate up to 9800 (the theoretical maximum ??? - but still not enough..)
I've just realised what gives me the "random" settings - changing while the project is "open" - starting a new project gives me the correct settings, changing between DVDs is giving the random ones !!!
OK, for the sake of another coaster and science at large, I'm going to use the HD-DVD settings and burn a standard DVD and see what happens ....
It may be rubbish, but at least the file will be the right size !!!!
If I'm still awake, I'll report back later....
No worries about coming in late....
IF I select HD-DVD (which I wouldn't as I'm only trying to get a bit of digital TV on a STANDARD DVD)..... It gets really interesting.
MPEG files
24 bits, 1440 x 1080, 25 fps
Lower Field First
(HDDVD-PAL), 16:9
Video data rate: Variable (Max. 18000 kbps)
LPCM Audio, 48000 Hz, Stereo
So now I have a higher bit rate than the file needs !!!!
What is really interesting though, is the estimated disk usage has dropped back to the size of the original (trimmed) file at 1.58/1.69G for 44mins26secs.
If I choose standard DVD (4.7G), tonight I got
MPEG files
24 bits, 720 x 576, 25 fps
Frame-based
(DVD-PAL), 16:9
Video data rate: Variable (Max. 7000 kbps)
Audio data rate: 256 kbps
Dolby Digital Audio, 48 KHz, 2/0(L,R)
BUT THIS HAS VARIED !!!!
Usually I get
MPEG files
24 bits, 720 x 576, 25 fps
Lower Field First
(DVD-PAL), 16:9
Video data rate: Variable (Max. 8000 kbps)
Audio data rate: 256 kbps
Dolby Digital Audio, 48 KHz, 2/0(L,R)
ie, matching my original "project" settings.
Why it varies (I have had NTSC on a couple of occasions!) I don't know.
Also my estimated file size is back up to 2.29/2.46G
I can edit a few of the properties in HD-DVD (I can only have 1920X1080 or 1440X1080 frame size, can't customise, and I can change frame type) Aspect ratio also greyed out
This is bizzare, how can a 1440X1080 only need a 1.58/1.69 file size...
In (standard) DVD (reloaded again and now I have "normal" settings, not one of the random ones, I have customise available but only the standard frame sizes (max 720X576) and I have aspect ratio. File size back to 2.61/2.68 BUT, the best bit, under customise... (compression) I can now put the bitrate up to 9800 (the theoretical maximum ??? - but still not enough..)
I've just realised what gives me the "random" settings - changing while the project is "open" - starting a new project gives me the correct settings, changing between DVDs is giving the random ones !!!
OK, for the sake of another coaster and science at large, I'm going to use the HD-DVD settings and burn a standard DVD and see what happens ....
It may be rubbish, but at least the file will be the right size !!!!
If I'm still awake, I'll report back later....
