Years ago there was a neat little utlity called GSpot (yeah it makes for some interesting hits on Google when you look it up without the modifier 'encoder', that would be able to analyze a video file and tell you tons of stuff about the file, like the encoder used for video and audio, the bit rate, and on and on.
Like all good things, that came to and end when the developer stopped updating back in 2007.
Are there any current programs which can tell you the encoders used?
Thanks for any leads. Dale