In my area, we are fortunate to have media sold in single pieces. This allows us to inspect each disk before buying it, though it tends to be mishandled by the attendants.
Now here is my dilema. Ricoh branded R02 disks have the following serial numbers, D1118B20350R(etched) 31118-B2(etched) K5504352E501RT5052018A02145(printed). The RiData branded Ritek R05s have this D0124C3110R 50124-C3 NCK607505107A09. Older Riteks G05 have DR5A03-01338 (etched) CPE608061158A14 (engraved) and other posts posts in the forums pertaining to Ritek R03 have similar marks with the V instead of D.
Is Ritek allowed to use Ricoh’s markings for their own media?
How could I distinguish between a Ricoh disk and a Ritek R05 besides the longer printed serials?
Do Ricoh R03s have new sets of markings?