HP/ Quantum/ TDK/ Maxell/ Sony do NOT manufacture DDS/ DAT tapes in BULK packaging. All DDS/DAT tapes coming from the original manufacturer come with an insert and individually wrapped.
Digital Data Storage (DDS) is a format for storing and backing up computer data on magnetic tape that evolved from Digital Audio Tape(DAT) technology, which was originally created for CD-quality recording. Tapes conforming to the initial DDS format can be "played" by either DAT or DDS tape machines. However, most DDS tape drives cannot retrieve the audio stored on a DAT cartridge. A DDS cartridge needs to be retired after 2,000 passes or 100 full backups. Tape drives should be cleaned regularly to be kept in good working order. DDS tapes have an expected life of at least 10 years.