Hello I've got a 'bang-your-head-against-a-brick-wall' problem, can anyone help??? I initially bought a Samsung Writemaster SH182D and firmware upgraded it to SB02 as per instructions. The drive read professional DVDs, home-made dvds from other computers and cds, but would not read the DVDs that it burnt! The DVDs it burnt could be read on other computers... I returned the drive to samsung. They sent a DIFFERENT one back, same model but different Serial Number = same problem. I was using Nero express OEM with this. I also tried a couple of other free-burning software from Download.com but only Nero actually completed the burning process. I couldn't find a solution, we bought a different drive, a NEC AD5170A model and again using Nero Express, will read, won't write properly, doesn't complete the burning process properly. Tried using Nero Ultra 6 version instead of Express, no improvement! Using Datawrite discs, have previously tried another branded disc. It doesn't appear to be a writer problem, nor a nero problem, nor a media problem, so it's the computer surely? any suggestions?