Basically, for movie files, I would like the little thumbnail preview that Finder shows me to be a frame from the movie file that I choose. For example, the beginning of many files looks the same, and I would like to be able to change it so that I can identify just from the thumbnail alone what file I am looking at.
Much like in iPhoto, where I can pick what photo is the album cover...
Much like in iPhoto, where I can pick what photo is the album cover...