Single-sided 4.7GB, double-sided 9.4GB, allowing for 240 minutes of repeated recording. Can also be used for storing PC files. This is a set of 45 discs: 5 discs x 9 boxes. These items were purchased several years ago for video recording, but they are new and unopened. They can be used with video recorders and drives that support DVD-RAM discs (mostly PC DVD-MULTI drives). These are TYPE4 products with cartridges, but you can remove them from the cartridge and use them as regular DVD-RAM discs. *Returns and refunds are not accepted. Please review the photos and description carefully before considering a purchase. #DVD-RAM #Panasonic #TV Recording #Recording Media Thank you for viewing.