How much space does it take up to record a still picture (with music in the background)? I'd like to set up an Auto-Record wishlist for my NBA team, but the League Pass channels have the games scheduled for a 6-hour block. As 99% of games are over in three hours, I end up setting up manual recordings of 3-hours to save disk space. (When the game is over, the NBA channel just shows a DirecTV logo and plays music in the background). IIRC, MPEG stores information about "changes" in the frames rather than the entire frame info, so shouldn't a still picture really have a minimal impact on disk space? Any clues?