Mark has a 1TB, 70,000 photo library and he's been backing it up to external hard drives. He's now looking for an online backup option where he can send in the drive and have it transferred over. Leo says that's the issue of online backup because it trickles data up to prevent his performance from dropping.
Carbonite should definitely have this feature though, and Leo's going to tell them.
(Disclaimer: Carbonite is a sponsor).