I found these back in 2011, but I really need to get money to repair my computer, so I'm hoping to get a decent estimate on value.
These are:
Samba De Amigo (disc without art)
Jet Grind Radio (disc without art)
NFL 2K1 (disc without art)
Daytona ??? (GD-R)
I don't know how to get that GD-R to boot on a normal Dreamcast, or how to inspect its contents, so I have no idea what it contains. All three art-less discs have their names written in marker on the center ring of the disc. :\
So, any thoughts?