dvgrab problems

I'm having a strange issue with a Canon HV30 camera and dvgrab with it's 
autosplit feature. When I capture with dvgrab the files it produces play 
fine but whenever I attempt to transcode (tried many different 
audio/video combinations) them (or just move it to a quicktime container 
via -vcodec copy -acodec copy) with ffmpeg or mencoder the final result 
is always out of sync by ~500ms.

Now, the reason I have to transcode them is because the 24FP feature of 
this camera produces a file that must have a IVTC applied in order to 
get a true 24P  signal. Adding the various options like 
-delay/-itsoffset (mencoder/ffmpeg) doesn't seem to have any effect on 
the output. It's just always off by 500ms. The only other solution I 
found was to use hdvsplit's scene detection and then I no longer have 
this problem.

It's odd because I can capture the entire tape to a single .mpeg file 
via hdvsplit, dvgrab, or adobe premiere and hdvsplit will correctly 
scene detect these files and have no sync issues.

Any suggestions? I could supply short clips producing these problems if 
that would help as well.

Thanks
Eric Wescott

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