Audio stops 1/2 way into the movie, after encoding...

[DeVNuLL]

Some reason from time to time I come across a DVD that I try to create / encode into DivX format and the audio stops 1/2 way into the movie. Anyone know why this is happening? If it helps I am using Gknot 26, DVD2AVI that came with it to extract the AC3 Audio files from the VOB files.

One exmaple is this file that was extracted: requiem AC3 T01 3_2ch 448Kpbs DELAY 0ms.ac3 (around 331MB), it plays fine in WinDVD and is the correct track I need. But when I noticed after encoding the whole movie the temp audio file that I guess Gknot creates before merging the audio and video together in MP3 format is only around 31MB.

I have no clue if this will help people or not, but it seems that I only have problems with extracted AC3 files from DVD2AVI that are more then 192Kbps in the actual file name that has been saved after extracting from the VOB files with DVD2AVI.

If there is any more info needed... just let me know.

Thank you for your time,

DeVNuLL

[U977]

I'm convinced that this is due to CRC errors in the AC3 audio stream.

From what I found on this forum, you need to re-rip the movie to get an error free audio stream, or you can encode it using Besweet 1.4, which will get around the errors (if you only have few of them, you won't hear the difference).

For more details, do a search on CRC error on this forum. You'll find the command lines to use. Don't forget to put that long command in a batch file, or windows will likely complain about the length of the command line!

Actually, you can find the command line and teh reasons of the failure of the audio encoding in the log file generated by besweet. I'm almost sure about the reason, anyway...

Cheers!

[U977]

By the way, I got that problem and choose to encode using Besweet 1.4. I got about 7 CRC errors in a 2 hours long audio stream, you can't hear the errors. Then, when you got your mp3 file, just use Gknot as usually, but for Audio, instead of using the AC3 stream, just select the MP3 file and "just mux".

If you are lucky enough (i.e. your video only file is not too long to fit on the aimed number of CDs), you can also just mux your MP3 with the video only AVI file using Nandub.
For this, open your avi, select video->direct stream copy, and in the audio menu, select (VBR) MP3 Audio..., choose your mp3, then save your new avi with audio using File->Save as AVI...
This will save you a lot of time because you won't need to encode the movie once again. But you must be lucky enough about the size of resulting file :-)

[Satlover]

you could try and remux with nandub and use direct stream copy for both audio and video

[DeVNuLL]

So far for at least this one movie I was having a problem with (Requiem for a Deam), seems to work fine it I don't extract any Audio Tracks with DVD2AVI, but use VOB2AUDIO insted and then just add the track through the final stage in Gknot.

Hope fully this works with other movies I was having problems with.

Thanks for all of the suggestions.

DeVNuLL