High file sizes

Harry_Film · Post by **Harry_Film** » Tue Apr 10, 2007 2:42 pm

I am compiling a DVD, with approximatley 3GB of footage, maybe less. Upon checking, it has said that the project size is 14.5gb. This baffles me, and I would really like the DVD to be rendered as I see it on the screen.

Why has Ulead nearly quadrupled my file size for the DVD?

GeorgeW · Post by **GeorgeW** » Tue Apr 10, 2007 3:20 pm

Most likely because your source videos are not already DVD-compliant (and heavily compressed such as DivX or xvid files are), and DVDWS is re-encoding to dvd-compliant mpeg at a higher bitrate.

What is the total running time of your video?

Regards,
George

Harry_Film · Post by **Harry_Film** » Tue Apr 10, 2007 3:21 pm

GeorgeW wrote:Most likely because your source videos are not already DVD-compliant (and heavily compressed such as DivX or xvid files are), and DVDWS is re-encoding to dvd-compliant mpeg at a higher bitrate.

What is the total running time of your video?

Regards,
George

3 hours and 39 Minuites

Harry_Film · Post by **Harry_Film** » Tue Apr 10, 2007 3:27 pm

Harry_Film wrote:
GeorgeW wrote:Most likely because your source videos are not already DVD-compliant (and heavily compressed such as DivX or xvid files are), and DVDWS is re-encoding to dvd-compliant mpeg at a higher bitrate.

What is the total running time of your video?

Regards,
George
3 hours and 39 Minuites

The videos were made on Abdobe premiere and compressed on windows movie maker. The main video is 2 hours and 24 minuites, with about 1 hour and 5 minuites of special feaures

GeorgeW · Post by **GeorgeW** » Tue Apr 10, 2007 3:48 pm

Harry_Film wrote:
Harry_Film wrote:
GeorgeW wrote:Most likely because your source videos are not already DVD-compliant (and heavily compressed such as DivX or xvid files are), and DVDWS is re-encoding to dvd-compliant mpeg at a higher bitrate.

What is the total running time of your video?

Regards,
George
3 hours and 39 Minuites
The videos were made on Abdobe premiere and compressed on windows movie maker. The main video is 2 hours and 24 minuites, with about 1 hour and 5 minuites of special feaures

You most likely have non-dvd-compliant files (compressed using WMM to either wmv or some other codec). So to make them compliant, DVDWS is compressing them to your project settings (probably lpcm audio, and video bitrate of about 8000kbps).

Will you be burning to single or double layer?

There's a bitrate calculator at videohelp.com/calc.htm

Regards,
George

Harry_Film · Post by **Harry_Film** » Tue Apr 10, 2007 3:50 pm

How would I make them compliant?

GeorgeW · Post by **GeorgeW** » Tue Apr 10, 2007 4:30 pm

Try to avoid multiple compressions (to save quality).

See if you can export a DVD Compliant mpeg from Premiere, or perhaps export to the native format of your original captures (like DV .avi, or whatever you originally edit in Premiere).

DVDWS has a builtin encoder -- so you would have to set your project properties properly to fit that amount on disc (depends on Single or Double layer disc).

Go to that link I mentioned earlier (videohelp.com) -- top left they have a section of "WHAT IS" for DVD

Regards,
George

Harry_Film · Post by **Harry_Film** » Tue Apr 10, 2007 4:43 pm

Im finding this all quite mind boggling. Ill re-render it on premiere, "preparing" it for DVD

GeorgeW · Post by **GeorgeW** » Tue Apr 10, 2007 11:08 pm

Try rendering a small dvd-compliant mpeg file out of Premiere. Then start a fresh DVDWS Project, and insert that "test" file. In the EDIT step, note that under the VIDEO tab there is an option to "Convert to disc Template" -- if that option is "open", then DVDWS considers it a compliant video, and will not re-render it (i.e. it will use it "asis"). If that Convert to Disc Template option is ghosted and checked, then DVDWS does not think your mpeg file is compliant, and will re-render to your project settings. There's also a similar option under the AUDIO tab.

Try creating a small test project, and burn it to DVD Folders on your hard drive. Thenplay it back with software such as WinDVD or PowerDVD. Or burn it to DVD+/-RW disc, and test it in a set-top dvd player.

Regards,
George

sjj1805 · Post by **sjj1805** » Wed Apr 11, 2007 2:54 am

Harry_Film wrote:Im finding this all quite mind boggling. Ill re-render it on premiere, "preparing" it for DVD

There are lots of different video formats
MPEG1
MPEG2
MPEG4
DivX
Xvid
MOV
WMF
and a few dozen other formats.

A DVD is made up of VOB files, those VOB files are in fact MPEG2 format
but they further comply to certain bit rates, screen dimensions and so on.

So... briefly if your files are not in a DVD compliant MPEG2 format then they will be re-rendered, this is irrespective of which VideoEditing Suite you are using.

GeorgeW · Post by **GeorgeW** » Wed Apr 11, 2007 4:42 am

sjj1805 wrote:
Harry_Film wrote:Im finding this all quite mind boggling. Ill re-render it on premiere, "preparing" it for DVD
There are lots of different video formats
MPEG1
MPEG2
MPEG4
DivX
Xvid
MOV
WMF
and a few dozen other formats.

A DVD is made up of VOB files, those VOB files are in fact MPEG2 format
but they further comply to certain bit rates, screen dimensions and so on.

So... briefly if your files are not in a DVD compliant MPEG2 format then they will be re-rendered, this is irrespective of which VideoEditing Suite you are using.

Well, it could also be dvd-compliant MPEG-1 -- which is sometimes used when trying to fit alot of video (running time) onto a DVD5 disc...

Regards,
George

Harry_Film · Post by **Harry_Film** » Wed Apr 11, 2007 12:26 pm

Ive downloaded divx and I am using that as a codec, see if that helps. Mpeg2's appear to not be properly rednering.

GeorgeW · Post by **GeorgeW** » Wed Apr 11, 2007 12:34 pm

Harry_Film wrote:Ive downloaded divx and I am using that as a codec, see if that helps. Mpeg2's appear to not be properly rednering.

For standard dvd-video, DivX won't be playable. it might be playable if your DVD Player supports that format, but not all DVD Players will be able to play your DVD.

Also, using the DivX file in DVDWS is asking for trouble (imho).

Regards,
George

Harry_Film · Post by **Harry_Film** » Wed Apr 11, 2007 12:37 pm

GeorgeW wrote:
Harry_Film wrote:Ive downloaded divx and I am using that as a codec, see if that helps. Mpeg2's appear to not be properly rednering.
For standard dvd-video, DivX won't be playable. it might be playable if your DVD Player supports that format, but not all DVD Players will be able to play your DVD.

Also, using the DivX file in DVDWS is asking for trouble (imho).

Regards,
George

Cheers man, Ill give divx one more try, then try mpegs again. I dont wanna have to redo the menu

The footage is pretty hgh file size anyway, as I use an XM-2 to film it

GeorgeW · Post by **GeorgeW** » Wed Apr 11, 2007 12:44 pm

Harry_Film wrote:
GeorgeW wrote:
Harry_Film wrote:Ive downloaded divx and I am using that as a codec, see if that helps. Mpeg2's appear to not be properly rednering.
For standard dvd-video, DivX won't be playable. it might be playable if your DVD Player supports that format, but not all DVD Players will be able to play your DVD.

Also, using the DivX file in DVDWS is asking for trouble (imho).

Regards,
George

Cheers man, Ill give divx one more try, then try mpegs again. I dont wanna have to redo the menu The footage is pretty hgh file size anyway, as I use an XM-2 to film it

DivX will be re-encoded by DVDWS (always). You are compressing to DivX, and then re-compressing to mpeg in DVDWS -- this is going to take its toll on video quality.

Try this -- tell Premiere to export a native DV .avi file from the timeline (try a little test clip). Then import that little test DV .avi into DVDWS, and let DVDWS do the mpeg encoding...

Regards,
George