New to the forum so hello to every1. Ive recently changed my settings from "pio" to "dma if available" on my ide controller for sony dru-530a in device manager. My burns on 4x media were taking 40 + minutes and I havent tried burning w/ new changes yet to see if its a differance. After visiting sony's site I noticed in their "firmware upgrade" instructions they state "disable [DMA setting] in Windows" before upgrading. I was wondering if my dma setting will now allow faster burning and why i need to disable dma in order to upgrade firmware? Thank you in advance!