Anyone pls tell me why my Nero can not see a CD-R 800MB at full capacity: it shows only ~700MB regarless my CD-R is true 800MB, and after I burn full 700MB on it, there is still large portion unwriten near the trim of disc. Is this wrong recorgnization comes fr Nero or fr drive firmware. I'm using Yamaha external CRD-70. How is the solution