However I can't seem to get virtualdub/avisynth to let me open the .264 file. I have ffdshow installed but virtualdubmod won't open it.

To make a long story short I need to mass convert some .264 files from a CCTV DVR unit to AVI's playing on any regular PC for our police department. My DVR's online software allows me to do this ...

iSquint, the freeware iPod video converter utility for Mac OS X, now supports 640 x 480 resolution H.264 video output.