Even though this is an aging thread, for those pondering the purchase of a printer for direct to disc printing, I found this list helpful. They are all models of printers that are capable of direct to disc printing. I can personally vouch for the quality of the PIXMA TS9020.
The video link at the bottom was the source of this list.
A small note about the video. The poster says something near the begining about using these printers for “projects and things that they sell online”. He, of course, is not refering to any of the Star Wars projects here and I would not, in any way, endorse using those printers to create anything from those projects for resale.
Pixma TS9020
Pixma TS8020
Pixma MG7720
Pixma MG7520
Pixma iP8720
Pixma MX922
Epson P400
Epson P600
Epson Xp-630
Epson XP-640
Epson XP-830
Epson XP-860
Epson XP-960