Audio off sync with split and joined video

[tbone]

I was working on editing out the commercials from some christmas specials. The specials were recorded in mpeg2. Audio is in sync with the video in the mpeg2's. I am using the dvd2avi method. I divx each section seperated by commercial breaks and have a series of 5 avi's. Audio is uncompressed. I then join the divxes together using virtual dub with append segment and then save the resulting avi, using direct stream copy. The audio in the resulting video is off sync. I know that the audio is not of sync in an of hte source so why when i join them does the audio become off sync?

[tbone]

Nobody has a solution? Again, I have separately encoded several segments of a video. each of the segments is in sync for the entire duration. the video is in divx 4 formatn and the audio is in wav format. I cobmine the segments and the audio goes off sync after the first segment. The only way arround this was for me to use avisynth to join the segments. VirtualDub would not do it.

Has anyone had this problem?

[UHT]

are you using the correct framerate settings?

[tbone]

All clips have save frame rate. I was using virtual dub to append all the segments together.

[Roginator]

Here's what I do:

1) capture video at max settings using Creative Videoblaster VCR in MPEG-2 (15000kbps VBR, 384kbps audio)
2) use DVD2AVI to create a .d2v project file and an .mpa audio file
3) use Avisynth script to open .d2v file with mpeg2source plugin, applying IVTC plugin and temporal smoother
4) convert .mpa to .wav
5) open .avs with VirtualDub and attach .wav file using proper offset
6) delete commercials and apply brightness, saturation filters.
7) HERE'S THE KEY: Under frame rate, specify that audio and video frame rates match.
8) frameserve to TMPGEnc for conversion to MPEG-1 -- or create a DivX or whatever.

I've found the latest IVTC plugin doesn't like signal drops. In that case, use GreedyHMA plugin. IVTC seems to result in smoother videos though.