The GC brand ("Great Quality") from frys.com are flat white on one side, I used both the CD's & DVD's with no problem. Printed up real well in an Epson inkjet with the disc carriage.
Another vote for supermediastore.com.
Look for hub-printable media from Taiyo Yuden, they have an excellent reputation for high quality and player compatibility.
Hi, I buy lots of them at Costco. They have about once or twice a year a special where you can get 2 for 1 on the 100 DVD-R packages. They are TDK and we've had no problems with them. They seem to be switching to grey DVD's with writing on them though. They used to be the white printable ones. Maybe youll be lucky and find some white ones during a special.
Gabriel http://www.videoexpressmontreal.com