Data cartridges

I have a second-hand tape drive which I use for my backups; I received it for free at a place where I used to work. It's still perfectly functioning, but I have one slight problem: I'm running out of tapes. So, just now, I went to look online for prices for those tapes. Man, they're expensive! €36 per 2.5GB tape is the cheapest price I could find. I don't like DDS tapes (they're not even half as reliable as the ones I use), but at least now I understand why people use them. If anyone has some spare SLR4 tapes which they don't use anymore, I'd be very happy to get them...

... and, of course, if you happen to know a cheap site where they sell those (or stuff with a higher capacity though still a lower price, that'll work too), that's also welcome.