I think I've posted this on here a few times. What's wrong with Start > Programs > Accessories > System Tools > Backup?

It's written by Veritas, licensed by MS, included on every Windows OS since 98, and works with tapes. It does not have the ability to write directly to multiple CDs/DVS, 'to span them', that I'm aware of.

But the big argument in it's favor, is that it works with every known version of Windows since Win 98. Including all the server versions. Lots of people talk about third party backup suites, but how many of them are prepared to purchase every upgrade that ever comes out from now to eternity? Assuming the software is still made/supported/company is still in business? I'd make a bet that people who purchase one copy of a third-party backup suite are once-and-done and never move beyond that one purchase.

What happens if you need to open a backup saveset you created with {fill in the name} five years ago and you can't? Or you misplaced the license key (it's on your failed HD), or you don't have the install disks, or the version doesn't run on the current OS version you're using?