Windows displays the first frame of a video as that file's thumbnail. I reckon 9 times outta 10 it's just a plain old black frame. This kinda defeats the purpose of the functionality.
ACDSee displays 4 frames in 1 thumbnail. This gives a much better representation of the video's content but sacrifices size.
Since the thumbnails are stored in a database file, wouldn't it be possible to manually allocate the frame to be used as the file's thumbnail?
Thanx for looking.