I'm sure I made a post about one on these I saw on ebay a while back but can't find it. Anyway, here's another cdr with the saturn ring pressed onto it, which as mal said (me thinks) would be suitable to make a working boot disk.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...0&category=3654
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...0&category=3654