I'm looking for a BluRay/DVD player that has a feature which I don't know if anyone else cares about. When I Fast Forward or Rewind a movie, I'd like that the displayed video on the screen to be smooth during the fast forward or rewind.
In more technical detail, MPEG files are implemented as Groups of Pictures that can be from 15 to 150 (or more) frames in length. Only the first frame in each group is actually stored as a full image: it's called an I-frame. When fast forwarding on all the players I've seen so far, it merely jumps from one I-frame to the next, and the result on the screen isn't very smooth.
What I'd like is a player that decodes the other frames (not just the I-frames) so that the fast-forwarded video is smooth. And the same for rewinds. I know this requires more processing power and doesn't make sense at the high Fast Forward speeds. Are there BluRay/DVD players that do this at least for the low FF speeds? Is this feature common enough that is has it's own name? How can I search for it in BluRay/DVD Player spec sheets?