Re: USD CD-RW

[Nyk Tarr <nyk@giantx.co.uk>]

On Sat, Nov 23, 2002 at 11:22:48PM -0800, Heather Stern wrote:
> On Thu, Nov 14, 2002 at 11:32:55PM -0500, Michel Hardy-Vall?e wrote:
> > Hi! 
> > 
> > I'd like to know if any of you could recommend a good external USB CD-RW
> > known to work correctly with Woody. The usb-linux page shows these
> > device as being in experimental support, but are they usable to read &
> > burn CD-ROM/CD-R/CD-RW ?
> > 
> > Regards
> > Michel Hardy-Vall?e
> 
> I haven't played with USB based CD/CDRW, but I have a tidbit to add;  I
> use a PCMCIA/ATAPI based one.  At some point I wistfully noted that it'd
> be handy to get the USB cable, then I could use it with desktops (well,
> modern ones) too.  A colleague at the table tsk'tsk'd that PCMCIA is a 
> faster bus.
> 
> Not being a board-level engineer, I'm not actually *sure* he's correct,
> but if so, you might consider that in your plans.

A quick check reveals:
USB1.1 is certainly slower than any PCMCIA device, USB2 is faster than
the old 16-bit cards and is probably fast enough (at up to 60MB/s ish),
but is still much slower than a cardbus interface. DMA may be an issue
too.

hth

nyk
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