Paul Smith wrote: > Dear All > > After an upgrade of the processor and motherboard of my computer, the > DVD burner became incredibly slow when burning (speed 1.4x). Can one > restore the old performance of my burner? I am running kernel-smp on a > FC5 machine with a P4 Dual Core processor. My DVD burner is a NEC > 3520A. Most likely, you don't have DMA any more on your burner. Check with hdparm /dev/hdc if your burner is named hdc. If it isn't on, try this: hdparm -d1 /dev/hdc and see if it helps. If you can't turn DMA on, you might not have support for your IDE controller in your kernel. Mogens -- Mogens Kjaer, Carlsberg A/S, Computer Department Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark Phone: +45 33 27 53 25, Fax: +45 33 27 47 08 Email: mk@xxxxxx Homepage: http://www.crc.dk