MPEGs will not join properly...help?

[pvanosta]

I have a movie which consists of 4 CD's. Each CD contains a large MPEG. Each MPEG plays fine, beginning to end, with the sound nicely in sync.
When I use tmpgenc to join cd1 and cd2, the resulting MPEG shows a sound sync problem in the second half. It's like there's 5 seconds of pictures missing at the join, while the sound runs normally, so at the join, the picture jumps 5 seconds ahead of the sound.
Has anyone else ever encountered this, and how do you fix it?
I have looked for other joining software, but M2-Edit is too expensive and none of the shareware/demo packages will run a file this size.
Thanks for any help.

[KingJohn]

Maybe you should load each mpeg into TMPGEnc Merge&Cut and cut a little off the end of each, if they dont finish at a GOP, then the join wont be very good.


KingJohns Guide Merging Mpeg1

KingJohns Guide Splitting Mpeg1

[pvanosta]

Thanks KingJohn.
Now, from reading your guide: should I first TRY to go through a manual edit of CD1 and CD2, thus manually 'tagging' first and last frame, and see whether it joins both streams in sync, or should I start chopping frames off rightaway?

Thanks

patrick

[pvanosta]

Here's what I tried, that DID work.

I demuxed each of the 4 CD's. I joined all 4 video files together. I joined all 4 audio files together. I remuxed the video and the sound.

I now have a working movie!
It does appear a tiny bit jerky every now and then (when the camera is panning, the movement isn't always as smooth as it could be), so I'll play around with a few different encoding options.

But other than that, it finally works!

[KingJohn]

Thanks KingJohn.
Now, from reading your guide: should I first TRY to go through a manual edit of CD1 and CD2, thus manually 'tagging' first and last frame, and see whether it joins both streams in sync, or should I start chopping frames off rightaway?
Thanks
patrick

Give it a try without chopping first, then go to the end of part 1, and the start of part 2. Save them out before you bring them back in for a join.

Oh you can put all that signature stuff in your profile

[pvanosta]

Thanks Kingjohn.
If you see my last post, you will see that I tried something else which DID work, more or less.
Tagging the start and end of CD1 and CD2 did not resolve the issue.
Demuxing all 4 CD's, then joining the 4 video streams together and (separately) the 4 audio streams together, followed by a remux of the audio and video, produced a working file, with in-sync sound.

the picture is a little choppier than the original though. Considering the originals were 4 mpeg2 files and the final resilt is a single mpeg2 file, should they not be the same quality?