XnView Software

The programme at the moment is very impressive, but it would be nice if it could support more video containers such as .flv (i.e. saved flash videos from youtube etc.), .ts (saved TV recordings in MPEG2 or H264/AVC), and .m4v (H264/AVC) often used for ipod downloads, then I can dump Windows Explorer completely . LAV Filters & Decoder (http://forum.doom9.org/showthread.php?t=156191) are very efficient at making these thumbnails (more so than ffmpeg).

OK, I see FFMPEG plugin is availiable
http://newsgroup.xnview.com/viewtopic.php?t=13577

maybe you could investigate using LAV as I've found this uses much less CPU to make thumbnails & is much quicker, also grabs frame further in rather than 1st.

I would also like to see support for H264 MP4 video. It's the default format for my Android phone video, and I suspect most other phones.