I just got a Dell dimension 4700 computer. It comes with just a CD-RW/DVD-RW single drive(NEC 3450A). After I opened the disc, it showed about 4300 MB with entire green bar on top. When I clicked the analysing disc button, it showed about 30 minutes remaining, frame speed is about 80-90 frames/sec, analysing rate is about 3000-3500 kbs. I thought it should take less than a minute to analyse a disc, according to the DVD shrink guide. ALL drives are in DMA mode, and I'm using the latest Shrink/Decrypter version. The total backup/burning time is about 2 hours. Any reasons why? Please help.