This is a plea to the guru's of Afterdawn. Nothing like a little ass kissing before a cry for help. I sent in my DW-U12A to be replaced by Sony. Never able to achieve 4X and after the firmware upgrades (2e)I couldn't get 2X. I rememebered a tech at circuit city asked about the motherboard setting. I refer to you guys and your wisdom in this matter. Before that I checked the device manager. DW-U12A location 0(0) cd-rom 1(1) Device manager settings: Primary IDE channel Device 0 Device type:Auto Detection Transfer Mode: DMA if available Current Transfer:Ultra DMA mode 5 Device 1 Device Type: Auto Detection Transfer Mode: DMA if available Current transfer: Not Applicable Secondary IDE Channel Device 0 Device Type: Auto Detection is greyed in Transfer Mode: DMA if available current Transfer-PIO is greyed in can't change this setting Device 1 Device Type: Auto Detection greyed in Transfer Mode: DMA if available current transfer: Ultra DMA mode 2 My BIOS Primary Master [1c35L090AVV207-0] Type [Auto] Multi-sector transfer [maximum] Smart monitioring [disabled] PIO mode  Ultra DMA  on the right side it states "warning Ultra DMA 3/4/5 can be enabled only when bios detects shielded 80 pin cable. Primary Slave Type [Auto] Secondary Master [sony dvdrw-u12a] Type [Auto] PIO mode  Ultra DMA  same warning about 80 pin cable Secondary Slave is CD_Rom Type [Auto]\PIO mode  Ultra DMA  I upgraded to the sony firmware 2.0c. The 2.oe gave me problems before. I have the Riteks GO4's and still Nero 5.5 10.42 and Recordnow max state that I am burning at 4X, but it takes 30-35 mins to burn. Recordnow still starts ok and then the time jumps from 14 mins to 32 mins at around 6%. This would be a great X-mas gift to get this taken care of. Happy holidays to all of you, regardless of this problem I have.