I know that this has been covered before with on the forums, but I can't post on old threads. I'm using dvd decrypter to burn a dvd5 in ISO mode. I have a LiteOn SLW 831SX external burner, and I'm using NexxTech 8x 4.7gb DVD-R. In Device Manager it says "DMA if avaiable" and "PIO Mode" under Current Transfer Mode. I'm getting these errors: I 16:45:02 Destination Device: [0:0:0] Slimtype DVDRW SLW-831S WS01 (D (USB) I 16:45:02 Destination Media Type: DVD-R (Disc ID: CMC MAG. AE1) (Speeds: 2x, 4x, 6x, 8x) I 16:45:02 Destination Media Sectors: 2,298,496 I 16:45:02 Write Mode: DVD I 16:45:02 Write Type: SAO I 16:45:02 Write Speed: 4x I 16:45:02 Link Size: Auto I 16:45:02 Test Mode: Yes I 16:45:02 BURN-Proof: Enabled I 16:45:03 Filling Buffer... I 16:45:05 Writing LeadIn... W 16:45:06 Failed to Write Sectors 0 - 31 - Invalid Field in Parameter List W 16:45:06 Retrying (1 of 20)... W 16:45:06 Retry Failed - Invalid Field in Parameter List Also, I did check to see if there was new firmware and I couldn't find any. This is a new burner for me, but I have used it successfully for ripping. I'm thinking new media may help, but that there could also be another problem. Any help is appreciated.