I recorded a two part show last year, and when looking at the two parts, each one is over 3 GB. The show only lasted for (about) the length of an average film. After cutting these two parts together and adding some minimal titles in iMovie, the total file came to be 12GB! What's going on? I'm supposed to be making a copy of the show for some friends, but the discs can only have around 4.7GB on them.