Reading a CD that has no reflective layer

Glen Slick glen.slick at
Wed Nov 19 17:45:06 CST 2014

On Wed, Nov 19, 2014 at 2:25 PM, Peter Coghlan >
> I've got a few caddies that seem to fit in an RRD40 but the only markings
> on them are a couple of arrows, "COMPACT disc" (on each side of the outside
> translucent shell) and "LABEL", "DATA" and "Made in Belgium" (on the inner
> flat-spectacle-frame-like-thingy).  There is a group of four over four notches
> cut out of the front edge that look like they might have some significance.
> I've only just noticed now on examining one closely that on the other side
> from the notches is a little slide control not unlike the write protect on
> some types of magnetic media and the little arrow beside it actually looks
> like a head over platter type symbol.  What's that about?

Are there any good quality photos of RRD40/CM-201 caddies on the net
somewhere? I only have a couple of the drives and have never seen the
caddies myself so I don't know exactly what they look like and how you
would recognize one for sure.


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