Just researching this area as all of a sudden Windows Media Player 10 and Nero Showtime have decided to refuse to play MPEG2 files (jerky playback). I'm sure something I've installed has wiped out a codec or two. Newly edited files are fine but anything previously in the system just won't play properly. I'm running XP Pro.
Is it best to have as many codecs as possible on your system or to keep them to a minimum? Is there a basic set that you need to install that will take care of most thing?
If anyone knows about these things and would like to share I'd be grateful.