Is anyone aware of any good (for a given value of "good") alternatives to ntbackup? There's a few quirks with ntbackup that I still find odd, and occasionally (and for no obvious reason) ntbackup just doesn't back up - usually complaining about that the wrong tape's inserted even though it's been told to just use the tape that's in the drive regardless.

I've experiemented with cygwin's tar and cpio and Win32 ports of these utilities, but I've not had any luck getting them to see the tape device (so if someone does use these utilities to write to a tape device, also be interested to know how).

Essentially all I'm looking for is a reliable program that I can tell to back-up a list of locations to the tape, and not to care about anything like formatting tapes, or sticking volume labels on them (and conversely then makes it fairly straightforward to restore off as well). On the flip-side, I don't want something that will attempt to manage our tapes.

Don't get me wrong here -- ntbackup can do the job, but its quirks are making look at possible alternatives. Any suggestions? If it's open source, even better.