> Yup. Asked for 1 - reported 4. But I think on a fail it probably isn't true? > Still, the drive and the media are both spec'd to support 4x writing, so that in > itself shouldn't be an issue I guess, anyway.
My experience with DMA is that having it off can seriously stuff the kernel's time keeping, with the result that it needs 20min to advance 10min, causing throughput rates to be displayed off by a factor of 2. This even happens on recent 2GH P4 hardware. If you want to find out actual writing speed reliably, you need to find out how many bytes were transferred and take the time using your wrist watch. In theory, writing over USB 1.1 (1MB/s, appr 0.8x) is fine if burnproof/whatever is turned on in the drive, it's just slower. DVD+RW doesn't even need anything special, it'll just be slower. Likewise if DMA is off and the system can't supply data at the required speed (indication of this is 100% CPU load). Kernel-time being stuffed doesn't cause faulty disks by itself. Recently I had the case of a box just crawling, couldn't find out why, CPU load displayed as close to 0. Kernel-time was fine, DMA on, but burning DVD+RW still only proceeded at 0.6x. No doubt it would have worked, but a reboot was faster. Volker -- Volker Kuhlmann is possibly list0570 with the domain in header http://volker.dnsalias.net/ Please do not CC list postings to me. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]