Stupid me not watching what he was doing encoded an mpeg-2 file as 4:3 when it should have been 16:9 which causes DVDA to get it not what it should be. Anyone know of a quick way to edit the mpeg-2 file to change the aspect ratio flag?
Would save a lot of time re-encoding the dang thing.
> You can change the aspect ratio within DVDA.
> Use the OPTIMIZE DVD screen and change VIDEO settings.
Yes, but that means DVDA recompresses the MPEG file - DVDPatcher just modifies the MPEG headers (very fast & no quality loss) to fix files that have incorrect header information.
It's also very handy for changing the bitrate info in the headers when using apps that smart-render MPEG files (which now include VP8 - hurrah!).
Well in my case the Project was setup as 16:9 and the file was encoded out of Vegas as 4:3 even though it was 16:9 so the DVDA project was correct and in fact DVDA will not recompress the footage, it'll tell the player it's 4:3 (it seems you can mix 4:3 and 16:9 on the one DVD, not a good idea in my opinion) and it'll get displayed wrongly.
I downloaded the utility but it was 1 am so rather than learn a new tool I did the re-encode while I got some much needed sleep. But thanks for the tip and John for some offline ideas. I will get to know this utility so next time I have a solution at hand.
Bob.
Former user
wrote on 12/6/2007, 5:52 AM
Tony,
Changing the AR setting does not require re-encoding. The resolution of a 16 x 9 or 4 x 3 video are the same in standard def.
It only changes a flag to tell the DVD player to play the video at a different aspect.
> Changing the AR setting does not require re-encoding. The resolution of a 16 x 9 or 4 x 3 video are the same in standard def.
Yes, I know - the point I was making was that DVDA won't let you change the AR setting of a media file unless 'Recompress' is set to 'Yes' (the option to change the AR is greyed out otherwise) - using DVDA 4.5a with DVD-compliant MPEG files.
Tony
Former user
wrote on 12/6/2007, 1:15 PM
You might be right, let me test it. I know i have done it without recompressing but let me verify.
Weird - what are you using as media files, and which version of DVDA is it - just out of curiosity ?
Tony
Former user
wrote on 12/6/2007, 1:24 PM
I edited my comment after you responded I think. I am testing it now to see, but I was sure I have changed the aspect without recompressing, but I have been wrong before.