The 8mm tape format is commonly used in Helical Scan tape drives, but was superseded by:

A.
Digital Linear Tape (DLT)

B.
Analog Linear Tape (ALT)

C.
Digital Signal Tape (DST)

D.
Digital Coded Tape (DCT)

Explanation:
“8mm Tape. This format was commonly used in Helical Scan tape drives, but was superseded by
Digital Linear Tape (DLT).” Pg 95 Krutz: CISSP Prep Guide: Gold Edition.