Try the new Quantum DLT drives.

As to tape being unreliable, that's the first I've read here. Yes, the drives do wear out but the tape is good for years and you can get the drives replaced or refurbed and you get your data back.

This has not been true about hard disks and to duplicate a 10 tape backup set in hard disks would be expensive. You can buy a new tape for peanuts compared to another drive plus... I've yet to find a hard disk unit with a write protect on it.