This is probably a really stupid question... but my curiosity has got the best of me.
They buy box loads of DAT data tapes where I work to backup information on the computer drives. I could get them really cheap through the office supply. But... of course, I have to ask the big question - are they any good for recording music?
They are the exact same size as a regular DAT cartridge and I tried one - fits into my Sony D100 just fine.
Curious minds want to know!