If you record - say - 5 of them and send them by 5 seperate couriers and xor them together to send the message, your enemy has to compromise etc 5 people. Or your enemy has to penetrate your site or your correspondent's site, and copy five CD-ROMs instead of one. CD-ROMs have one advantage: there's a lot of data. But that's not all good, because you *really* want to destroy any keying material you've ever used. I've heard People Who Know say that in the spook and government world, one-time pads are falling out of favor --- because their practical security isn't as good as a really high quality conventional cipher with a dynamically-negotiated session key. I repeat: *practical* security; your enemy isn't going to hit you or bribe you with a copy of Shannon's theorems.