Homebrew PCBs

I see from some of the files that the cd tray has been tried for direct 
printing to copper with Epson printers. None of these files really say 
if it worked or not. One shows printing on a CD but not to copper. 
Unless the CD printing program is modified (somehow) the boards would 
have to be small some combo of L X W or round. Hmmmmmm round this could 
be the start of something BIG! This doesn't sound as if it would be to 
hard, so if somebody has done it could you relate your experience?