Check the following points.
- •Please check the verified media vendor list from your drive/recorder manufacturer. Or can you ask the manufacturer if the Ricoh disc model has been tested by them?
- ○For instance, if the Ricoh disc model you have is not included in their verified media, it may not write properly, and it may cause a reading problem.
- •Please try a firmware upgrade for your drive/recorder, if one is available. Firmware upgrades for Ricoh drives are available from here.
- •If one is available, please try an update for your writing software.