Hello. I have an USB 2.0 NEC Dual/double layer burner. ND-2510A I am using Ridata 8/. +R media. Pentium 4 2.26Ghz 1Gig ram 200Gig HD WinXP I have tried with Dvd Decrypter 3.5.x.x, Nero 188.8.131.52, Copy to Dvd 3.x the latest...\and all of them will NOT burn. They go ahead and get ready, stating "burning Layer 1" then I get an error message about "llegal"or "invalid media" or " invalid format". Ive tried withcopy ing disc, making an ISO, but every time it goes to burn, it stops. I have tried other Ridata dual layer discs with the same result. Is it the actual drive or firmware? If it is the firmware, is it worth updating(and is this easy to do) or should I just go get another burner AND/or a different brand burner? Thanks in advance, this intelligence inhere is remarkable!