Anyone use File Vault

[max cooper]

I'm doing some work for a film company and they're using File Vault on all their Powerbooks.

File Vault scares me to death, because it seems that if anything goes wrong during the encryption, you're S.O.L.

I'm trying to convince them to stop using it.

I know it slows the system down to a crawl on an (already slow) G4 powerbook.

I figure not many DAW people would use it, but just wondering.

Any good horror stories?