MP4 is a no-brainer. I purposely limited this beta to .mov and .avi. MKV and OGV files are another matter all together. MKV files are weird and not suitable

MP4 is a no-brainer. I purposely limited this beta to .mov and .avi. MKV and OGV files are another matter all together. MKV files are weird and not suitable for editing at all, even with Perian. Same goes for WMV via Flip4Mac. OGV, I've never even tried, but will add that to the list. Thanks for the feedback!