Optical disk drives must have the supported media inserted into the optical disk drive. If the media or disk in the drive is changed, the software must reprobe to recognize the new media.
The tape drive must be populated for tape drive testing.
The media can be blank or used. If the media has been used, the test performs a read-only test. If the media is blank, the test performs a read/write test. The media test can also perform a CD/DVD read test and a CD/DVD Read/Write test.