when i try to use ffmpegx to encode a VOB ripped from a DVD using either dvdbackup or osex, it will encode the audio mp2, but then say the video file cannot be found or something.

i don't think there's a problem with the encoder itself, cos if i demux the vob first, i can re-encode the video by itself just fine. it would be nice to be able to go straight from the vob though. here's what i get in my terminal..

mpeg2dec-0.2.1 - by Michel Lespinasse <walken@zoy.org> and Aaron Holtzman
Using altivec for IDCT transform
   INFO: [yuvscaler] yuvscaler (version 1.7.0) is a general scaling utility for yuv frames
   INFO: [yuvscaler] (C) 2001-2002 Xavier Biquard <xbiquard@free.fr>
   INFO: [yuvscaler] yuvscaler -h for help, or man yuvscaler
Using altivec for motion compensation
Frame rate code = 17960
MPEG in libvo = 63 aspect_code=82160
++ WARN: [mpeg2enc] Generating dummy SVCD scan-data offsets to be filled in by "vcdimager"
++ WARN: [mpeg2enc] If you're not using vcdimager you may wish to turn this off using -d
a52dec-0.7.4 - by Michel Lespinasse <walken@zoy.org> and Aaron Holtzman
No accelerated IMDCT transform found
   INFO: Opened WAV file, freq = 48000 Hz, channels = 2, bits = 16
   INFO: format = 0x1, audio length = 4294967256 bytes
   INFO: slots/frame = 731
   INFO: frac SpF=0.429, tot bitrate=224 kbps, s freq=44.1 kHz
   INFO: Fractional number of slots, padding required
   INFO: System is big endian
4754 frames in 406.20 sec (11.70 fps), 31 last 2.73 sec (11.36 fps)
4756 frames decoded in 406.20 seconds (11.71 fps)
   INFO: Avg slots/frame = Inf; b/smp = Inf; br = Inf kbps
   INFO: Encoding with psychoacoustic model 2 is finished
   INFO: The MPEG encoded output file name is "/Users/cheryl/Movies/Ripped DVD/osex rip/FAWLTY_TOWERS_PROMO/osexrip2.mp2"
   INFO: [mplex] mplex version 2.2.1 ($Date: 2002/04/20 19:08:30 $)
**ERROR: [mplex] File /Users/cheryl/Movies/Ripped DVD/osex rip/FAWLTY_TOWERS_PROMO/osexrip2.m2v unrecogniseable!
   INFO: [mplex] File /Users/cheryl/Movies/Ripped DVD/osex rip/FAWLTY_TOWERS_PROMO/osexrip2.mp2 looks like an MPEG Audio stream.
**ERROR: [mplex] Unrecogniseable file(s)... exiting.
Encoding complete!
[cheryl-tofsruds-Computer:~] cheryl%