Hello all,
I agree with aay ;knoppix is great at detection.
My usb 2 CDRW (kanguru) is recognised.

At times my KDE desk top icons for
dirves need a little help.

Right click on the screen --> Create New
--> CD/DVD-ROM Device --> Device
--> click down arrow and pick or
if not listed try /dev/cdrom1
--> OK

Another trick may be to unplug it, boot,
and then pulg it in and during autodectct
the icon may be created. Sorry I have not
tested this.

A CDRW is a great addition to a KNOPPIX box.
It may be used to backup you persistent home.
I have suggeste a script for this in Tips and Tricks.

Best Wishes
paradocs