On Fri, 2008-02-08 at 17:14 +0100, Dominic Fandrey wrote: > Tom Evans wrote: > > If I try to turn on DMA, I just get WDMA2, which just doesn't cut it: > > I think any DMA mode is fast enough to handle a DVD drive. There's just no > necessity for more. >
WDMA is not UDMA. Any UDMA variant would be enough. WDMA2 provides a maximum of 16MiB/s, which will frequently lead to buffer underruns viewing a DVD. UDMA2 provides a maximum of 33MiB/s, which IS plenty. > >> # atacontrol mode acd0 udma5 > > current mode = WDMA2 > > Same as for me. I'm satisfied with the speed of the drive. I'm rarely satisfied - I'm quite often not bothered enough to pursue :) Tom
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