I captured a video using my Matrox Rainbow Runner - G-Series card.
(Cable-TV source)

It produced 3 avi files. Two were about 2.5Gigs each and a smaller third file. These are MJPEG files. (hard drive was well defragged)

video info:
NTSC
xy: 352x240 (1.47:1) [=22:15]
30 FPS
bitrate: 4169 kb/s

audio info:
PCM Audio
1411 kb/s (705/ch, stereo)
44100 Hz
(stereo 16bits/sample)

I noticed that there are about four green lines at the top of the video.
Also as time goes on the audio gets more and more out of sync with the video.

I tried bringing these files to my MAC G5 and playing them with QuickTime and I still have the problem. I tried bringing the files to another PC without Matrox hardware and using Morgan's software mjpeg codec, but I still have the same problem with audio/video sync.

I'm trying to piece these three files together, edit out the commercials, get rid of the green lines on the top, keep the video in sync and produce a VCD (2.0).

Do you think that the sync error is because of the difference between 30fps and 29.97fps?

I mean I can understand and probably process, a constant time shift between audio and video but I don't know how one corrects for a gradually increasing error.

If you have any ideas on how to process this properly please let me know.
I've got most of the software tools mentioned on this board...

Also how do I tell if the avi file is interlaced or progressive?