This is a set of 16 brand new, unopened MITSUI GOLD CD-Rs manufactured by Mitsui Chemicals, 650MB each. I purchased these at the time but never had the opportunity to use them, so I am offering them for sale now. If you are interested, please consider purchasing them. ■ Product Contents (all new and unopened) ・MITSUI CDRS74PW (black): 16 discs (6 individual discs, 1 box of 10) They have been stored in a dark place (closet) at home for a long time. Although they are unopened, I cannot guarantee their functionality due to their age. (Used CD-Rs stored in the same place played back without any problems, but I have not tested the functionality of these specific discs. Please be aware of this.)