My player right now is VCDcutter 4.04
I record alot of TV in mpeg1 to view at work and just find the navigation keys to be awsome. You can size or zoom the screen without the borders, side arrows pauses and moves the clip 1 frame at the time, up and down arrows advances or rewinds %10 very nice to skip commercials. Did I mention it's also a full blown MPEG1 editor and that you can capture frames and rip the audio to mp3, convert DAT and VOB to MPG and MP3 and Multiplex. But I use it most as a player.