Not sure if this will help, but I remembered having seen someone
working with CD's on HGTV once. I did a little search and found a few
episodes of the Carol Duvall Show where they made projects with CD's.
Looks like they did their heating with a heat gun, hairdryer or let
it sit in this warm embossing solution till it was soft enough to
cut. Once warm, they cut with scissors. If you go to www.HGTV.com you
can pull up the Carol Duvall episodes: episode CDS-1325 Faux Dichroic
Glass, CDS-1139 CD Pins, CDS-1303 Mizuhiki Pins. The website gives a
condensed version of the project. Better of course if you can view
the actual episode. Some of the guests also have links to their
websites at the bottom of the episode page. You may be able to find
more info by following a link.
I think CD's are a great recyclable material that you could make some
great mixed media work from. Might just take some research and
experimentation to find the safest and easiest way to maniplulate the
material. I don't have a heat gun myself, but I understand that their
are a variety of heat guns available and some get much hotter than
others. The heated embossing liquid looked really interesting, but
may only be worth investing in if you want to do embossing as well.
Hope this helps