Convertxtodvd causes sound synch problems with some films

[johnharlin]

There are a few movies I have converted to DVD that ended up with sound synch problems. The original divx did not have any sound synch problems. I converted four movies to one DVD. They were each about 45 minutes long and ConvertxtoDVD classified the whole thing as "Good" quality before burning.

After the conversion one of the movies had a section near the end of the film that developed sound synch problems. While another movie -- whose log I have below -- had a little silent blip for 5-10 seconds a few minutes into the movie and then became completely out of synch for the rest of the film. The original divx had no such problems.

What could be causing this? What can I do to avoid that if I try to convert it again?

======================= TITLESET #2 =======================
2000-10-04 12:55:43 ---- *
2000-10-04 12:55:43 Info Generated duration 2855.33 sec., expected 2855.37 sec.
2000-10-04 12:49:35 Info P-SDT buffer Underflow 1 times, 1158 bytes peak
2000-10-04 12:48:06 Info Chapter #10 start at 44:59.997
2000-10-04 12:41:36 Info Chapter #9 start at 40:0.097
2000-10-04 12:35:32 Info Chapter #8 start at 35:0.098
2000-10-04 12:29:25 Info Chapter #7 start at 30:0.298
2000-10-04 12:23:19 Info Chapter #6 start at 25:0.198
2000-10-04 12:17:18 Info Chapter #5 start at 20:0.098
2000-10-04 12:11:05 Info Chapter #4 start at 14:59.999
2000-10-04 12:04:55 Info Chapter #3 start at 9:59.999
2000-10-04 11:58:51 Info Chapter #2 start at 5:0.199
2000-10-04 11:52:05 Info Stream #2 - Audio sync at 480.00 ms: 44.03 ms added
2000-10-04 11:52:04 Info Audio settings: Automatic With DTS -> AC-3 conversion
2000-10-04 11:52:04 Info Output Stream #2 (AUDIO) - ac3, 48000 Hz, stereo, s16, 192 kb/s
2000-10-04 11:52:04 Info Output Stream #1 (VIDEO) - mpeg2video, yuv420p, 720x480 [PAR 8:9 DAR 4:3], q=2-31, 2767 kb/s, frame compensation: 29.970 -> 29.97 Fps
2000-10-04 11:52:03 Info Video processing: Linear resampler (720*480)->(720*428)
2000-10-04 11:52:03 Info Video processing: Pad (Left:0 - Top:26 - Right:0 - Bottom:26)
2000-10-04 11:52:03 Info Chapter sequences require 619 Mb. temp space
2000-10-04 11:52:03 ---- ************ Source file #1 END DETAILS ************
2000-10-04 11:52:03 Info AUDIO Stream #2 : Audio: mp3, 48000 Hz, stereo, s16, 128 kb/s
2000-10-04 11:52:03 Info VIDEO Stream #1 : Video: mpeg4, yuv420p, 720x480 [PAR 1:1 DAR 3:2], 29.97 FPS
2000-10-04 11:52:03 Info Audio/Video file with 2 stream(s) - Playback order:1 - Queue:0
2000-10-04 11:52:03 Info D:\Movies\moviename.avi
2000-10-04 11:52:03 ---- *********** Source file #1 BEGIN DETAILS ***********
2000-10-04 11:52:03 Info Video bitrate has been set to maximum possible value for DVD specifications. Target size may not be reached.
2000-10-04 11:52:03 Info Video bitrate 0/2767/9608 Kbps (min/avg/max)
2000-10-04 11:52:03 Info OUTPUT ==> Resolution: FULL D1 [720*480], Format: NTSC, Aspect ratio: 4:3

[redwudz]

My only guess is there is something wrong with the files that have sync problems. Being able to play them back doesn't mean much as some players can skip over damaged sections and you may not notice. ConvertX is a very stable program and rarely has errors.

You might post a MediaInfo or Gspot screen shot of one of the original files that has a problem after conversion. You can blank out the file name if wanted.