Ok, I have run most of my CDTV titles from backups to avoid scratches and all that for my quite hard to find games. So using CDRs should not be a problem.
You can make bootable cds by yourself, but you need cdtv.tm -file from Amiga developer cd. I have seen cdtv.tm -files floating over net, but I'm not sure about legality of those.
There is nice, but quite old guide here:
http://acdldp.emuunlim.com/bootablecdr.shtml
