blank mp4 files when converting dvd vob files to ipod mp4

[stevesnelson]

I using ffmpegx to convert dvd vob files to ipod mp4 and it finishes encoding in just 1-2 seconds and the mp4 file it creates is empty only 4k and will not play back. What am I doing wrong?

[Baldrick]

Moving you to our ffmpegx section where you might get more help.

[Case]

Press the blue "i" in the ffmpegX Progress window. This will bring up a Process Information window (log, if you will) which may contain an error. Post the log here, so we can have a look and suggest how to prevent the error.

[stevesnelson]

Encoding started on Wed Jan 17 13:27:33 CST 2007
x264 [info]: using SAR=1000/1001
x264 [info]: using cpu capabilities Altivec
mp4 [info]: initial delay 0 (scale 24000)
movtoy4m
Copyright 2002-2006 Johan Lindstr??m
All rights reserved..
Thank you for answering, Here it is:

ERROR: Could not open movie: /Users/steve/Desktop/lord/VTS_08_1.VOB
x264 [info]: final ratefactor: 52.05
FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Mac OSX universal build for ffmpegX
configuration: --enable-mp3lame --enable-gpl --disable-vhook --disable-ffplay --disable-ffserver --enable-a52 --enable-xvid --enable-faac --enable-faad --enable-amr_nb --enable-pthreads --enable-x264
libavutil version: 49.0.0
libavcodec version: 51.9.0
libavformat version: 50.4.0
built on Apr 15 2006 08:41:02, gcc: 3.3 20030304 (Apple Computer, Inc. build 1666)
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x4701fc]Could not find codec parameters (Video: h264, 640x352)
/Users/steve/Desktop/lord/VTS_08_1.VOB.ff.video.mp4: could not find codec parameters

[Case]

Get the file size on VTS_08_1.VOB. If it's very small, say under 1 MB, then it may not be a regular video file. E.g. an "All rights reserved" warning clip could be 600 KB, but hardly interesting on your iPod.
Other than that, I have no idea why one VOB wouldn't open while others would.

[stevesnelson]

the file size was over 1 GB about 1025 MB I think

[markhall]

I'm actually having this same problem. I'm backing up a DVD, and I've gotten VOB's 1, 2, 3, and 5. For some reason, number four just skips straight to 'Finished', and the file is empty. I've check the file size and it's the same as all the others. I'm not sure what the problem is..

[getamap]

I have the same problem as well... Can anyone help? its very frustrating!