The eMARK Black Diamond Groove CD-R from Kimura corp Japan takes you back to the 70's as it depicts a gramophone record. It is specially targetted at users for burning custom audio CD's. The disc has a capacity of 700MB (80 minutes) and a speed of 52X. There is a printable area of 24mm so you can label the discs. The manufacturers claim that the black coating increases the life of the CD.

A spindle of 50 discs costs 1680 Yen ($ 14.5) and 10 discs costs 357 Yen ($ 3) in Japan.