[VCDImager] vcdimager: mpeg stream has been deemed invalid

[khurram]

Tyring to use vcdimager, but i get this:

$ vcdimager output.mpg
++ WARN: initializing libvcd 0.7.20 [linux-gnu/i386]
++ WARN:
++ WARN:  this is the UNSTABLE development branch!
++ WARN:  use only if you know what you are doing
++ WARN:  see http://www.hvrlab.org/~hvr/vcdimager/ for more information
++ WARN:
++ WARN: mpeg scan: pack header code (0x000001ba) expected, but 0x52494646  
found (buflen = 2324)
++ WARN: ...this looks like a RIFF header but a plain multiplexed program  
stream was required.
**ERROR: input mpeg stream has been deemed invalid -- aborting

Any way to fix this?  The output.mpg plays fine in mplayer, although i can  
fast forward or rewind it.

Thx.