Both the 650MB CD-RW and the 700MB CD-R are media with high compatibility. - Type: CD-RW - Capacity: 650MB - Type: CD-R - Capacity: 700MB - Supported Speed: 48x Thank you for viewing. Although unused and unopened, the packaging has many stains and scratches as it was purchased many years ago. Please check the photos and refrain from purchasing if you are sensitive to such issues.