Anybody opened mov files in Virtualdub from the 5dmk2 so far? I tried many ways, downloaded some plugins from http://www.videohelp.com/tools/Virtualdub, but the best thing was the correct size of the video but blank (green or black) screen, no chance to see the video.
Currently my working method is to convert those mov's to avi and open them in Virtualdub, but I want to jump over this step because of the very possible quality loss, even if I compress in 100% quality I often see the compression blocks and banding.

Answer: right now isn't possible to open 5dmk2 mov's in VD, but almost the same app, AviDemux can open and convert the mov's

I use MediaCoder or MPEGStreamClip for conversions and resizing 5Dmk2 files