Why does DVD burning software require so much harddrive memory for their "working files"? I'm trying to burn a 4.19GB video project (using Ulead's Movie Factory 5.0 Plus) and the working files want to take up 8.32GB of harddrive memory. But I only have 3.54GB left b/c the rest of the memory is being taken up by MPEG video files. I edited down a lot of these files and took 6 DV tapes to make 1:15 hour video project. Now the program is insisting on using up so much harddrive space. I'm missing about 5GB. I could knock off a bunch of programs from C: drive but that sounds ominous. Who knows if I could reinstall them! Is there anyway around this? Can I make the program take much longer to do the job but use less harddrive?