Media recorded in different densities.

The following examples show tape drives that record on the same media in different formats:

T10000 Media that is used by both T10000A and T10000B Tape Drives

The T10000B tape drive uses the same media as the T10000A, but writes data at double the T10000A's density. The T10000B can read T10000A media and can reformat it for writing T10000B density data, but it cannot append data to a previously written T10000A cartridge. The T10000A drive can reformat a T10000B cartridge for writing T10000A density data, but can neither read from nor append data to a T10000B cartridge.

9840 Media used by T9840A & T9840B, T9840C, and T9840D Tape Drives

The T9840A and T9840B tape drives use the same media and record in the same format. The T9840C also uses the same media, but records at double the density. The T9840D writes at almost double the T9840C drive’s density. You must manage 9840 media when a combination of T9840A/T9840B, T9840C, and/or T9840D drives are present. 2 2

The T9940B tape drive uses the same media as the T9940A, but writes data at double the T9940A's density. The T9940B can read T9940A media and can reformat it for writing double density data, but it cannot append data to a previously written T9940A cartridge. The T9940A drive can reformat a T9940B