Is there such a thing as a DVD-R disc that holds more than 4.7 GB? I would like to find one that can record more than 2 hours on SP. I'm trying to put several recorded college football games onto DVD-R's but the quality on the LP (4-hour) mode isn't great. Even if I cut out all the commercials, halftime, etc. the game still runs around 2:15 to 2:30.