Quantum DLT 2000 Handbook page 148

We are continually working with major ISVs to ensure support for
current and future DLTtape products. We check ISV solutions to
identify functional deficiencies, provide the ISV with performance
tips and tuning, provide quantitative and qualitative feedback, and
provide the latest firmware updates. Once an ISV solution is quali-
fied (either by Quantum or the ISV, or both) on DLTtape drives,
we encourage the ISV to add us to their Certified Device List as
soon as possible.
Next, we'll look at storage management software and what it means
for DLTtape system users.
QUANTUM DLTtape HANDBOOK 13.7