compression question
Moderator: Ken Berry
-
jasondyates
- Posts: 24
- Joined: Fri Jan 11, 2008 8:52 am
compression question
I have created several different videos in videostudio 11 and I have saved these projects as MPEG files. I want to put them all on one DVD and have them all as diffferent chapters. I know how to make them chapters by opening all of them in the project window and putting in the chapter markers but if I save this again to make it an MPEG for burning or if I just go to create disk it compresses the files (a second time) and I lose alot of quality. Is there any way to save without compression before burning and menu creation? I saw a thing in project settings that says compression. If I move it to 100% will this work and will it not compress my files. I tried it the other way and I lost alot of quality on the final outcome on the DVD. PLEASE HELP!
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Trevor Andrew
Hi Jason
Saving your project as Mpeg Files by using Share Create Video File is probably the best option.
You need to use a bit rate that will produce a total file size of 4.3 Gb. This will allow the files to fit to disc.
What is the total length of your all video¡¦s in minutes.
As a guide a bit rate of:-
8000 Kbps will allow about 60 minutes to a DVD
At 6000 you will get 90 minutes and 4000 allowing 120 minutes
Having created your mpeg 2 files you can add these to the burner module.
From a new project, go to Share Create Disc
Use the Add Video option and add your mpeg files.
Each Mpeg you add will become a Title on your menu page.
If you created the mpegs using the correct settings then compressing or rendering the discs a second time will not be necessary.
You do not say what settings you used!
The 100% slider does not effect the size of the final file, only the way the encoder works, leave it on the default 70/80%
Saving your project as Mpeg Files by using Share Create Video File is probably the best option.
You need to use a bit rate that will produce a total file size of 4.3 Gb. This will allow the files to fit to disc.
What is the total length of your all video¡¦s in minutes.
As a guide a bit rate of:-
8000 Kbps will allow about 60 minutes to a DVD
At 6000 you will get 90 minutes and 4000 allowing 120 minutes
Having created your mpeg 2 files you can add these to the burner module.
From a new project, go to Share Create Disc
Use the Add Video option and add your mpeg files.
Each Mpeg you add will become a Title on your menu page.
If you created the mpegs using the correct settings then compressing or rendering the discs a second time will not be necessary.
You do not say what settings you used!
The 100% slider does not effect the size of the final file, only the way the encoder works, leave it on the default 70/80%
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Ken Berry
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Just to add to Trevor's response, if you have prepared mpeg-2s of your projects, then in video parlance you have created 6 "titles" (not chapters). If you applied a compression rate during that conversion which will make the total space of the 6 titles 4.3 GB or less, then they will fit on a single layer DVD. (Preferably keep it just a little less to allow for the menu.)
Once you insert them in the burning timeline, each of th 6 will appear as a separate icon in the main menu page you select. But each can be split into "chapters" within the burning module, either automatically by time (e.g. every 3 minutes) or scene, or you can do it manually.
Importantly, to ensure that the mpeg-2 properties are not changed as part of the burning process and a further render take place, click on the middle of the three icons in the bottom left of the burning screen, and ensure that the box beside "Do not convert compliant mpeg files" is ticked.
And a point of clarification, the 100% slider in the editing module to which you refer, is in fact a time/quality balancer. If, for instance, your sole concern is quality, then yes, set it to 100% -- but this will mean that the program will take (considerably) longer to render ir order to produce a notionally (some users say noticeably) better quality video. If, however, you want to produce what will be a reasonable quality video in a faster time, then use a setting lower than 100%. I personally use the default setting and have never been disappointed. Much below that setting, though, and the fall-off in quality becomes increasingly noticeable.
Once you insert them in the burning timeline, each of th 6 will appear as a separate icon in the main menu page you select. But each can be split into "chapters" within the burning module, either automatically by time (e.g. every 3 minutes) or scene, or you can do it manually.
Importantly, to ensure that the mpeg-2 properties are not changed as part of the burning process and a further render take place, click on the middle of the three icons in the bottom left of the burning screen, and ensure that the box beside "Do not convert compliant mpeg files" is ticked.
And a point of clarification, the 100% slider in the editing module to which you refer, is in fact a time/quality balancer. If, for instance, your sole concern is quality, then yes, set it to 100% -- but this will mean that the program will take (considerably) longer to render ir order to produce a notionally (some users say noticeably) better quality video. If, however, you want to produce what will be a reasonable quality video in a faster time, then use a setting lower than 100%. I personally use the default setting and have never been disappointed. Much below that setting, though, and the fall-off in quality becomes increasingly noticeable.
Ken Berry