I installed a Sony DRU-540A in my Sony computer. It is a DVD/CD rewritable Drive. I am using Nero software. My computer has XP operating system. When I burn 4.7 gb or less of info it takes like 15 hours or so to complete from start to finish. I know that is much too long. Anybody out there have any ideas why it is taking so long? Any help would be appreciated. jimbony