my MPEG2 are being re-rendered when they neednt

howardnwhite wrote on 2/3/2009, 12:16 PM
I am rendering in Premier Pro to MPEG2. The size of these I make sure is less than 4GB. When I put it into DVD architect it is showing as a lot more than this, sometimes over 7GB! This has only started recently and did not happen before. MPEG2 would burn quite happily without further comprtession or rendering before, so what has changed? I say it happens now, but still I am lucky sometimes if I just restart the program! I do not want to render for 3 hours in premier specifically to the right size and format, and then have to render again ion architect for another 3 hours and maybe lose quality. The important thing is that it did not happen before. Any ideas? Thanks

Comments

musicvid10 wrote on 2/3/2009, 12:22 PM
Prepare (but don't burn) the project in DVDA. Ignore the warning message about size. Close DVDA. Reopen the project. See what size it says now.
howardnwhite wrote on 2/3/2009, 12:25 PM
Yes I think that is what I did last time and it sorted out. But I thought maybe it was just lucky coincidence! Can you give any kind of explanation as to why this happens? Thanks a lot.
johnmeyer wrote on 2/3/2009, 4:36 PM
Two reasons:

First, there is an old bug in DVDA. While it always over-estimates by 10-20%, when you get 100% over estimates, it is often because of this bug. The solution is to save the project, close DVDA, immediately re-open DVDA, re-open the project, and then look at the estimate. Usually, it will tell you something more reasonable.

The second reason is that while you can re-use media over and over in a DVDA project without adding to the size of the overall project, the moment you alter any one of those instances by adding a subtitle or a new audio track, that media will now be loaded twice. If it is the main media, and it takes 4 GB, then your project will go to 8 GB. This is not a bug in DVDA, but is the way a DVD works.
Sherif wrote on 2/7/2009, 2:29 PM
John, thanks for that explanation - my DVDA project was driving me mad because I was subtitling onto VOB files I had ripped from a DVD, and DVDA showed the original VOB and then another one with subtitles - not good as it thinks its working with 9Gb of files rather than only 4.5Gb. This is a poor way of working isnt it?

I notice that in vegas when I choose to render to a DVDA stream, when i then bring in that mpg2 file into DVDA, then DVDA still compresses the audio file - this cant be right? I thought by choosing a DVDA-stream render template there would be no further compression required of audio files (as long as it fits on disc of course which i did check).

cheers