We write two DVDs of important tracks, the audio masters tend to be all over the shop, CDRs and usually still on the original hard disk as well as bounced copies on the DVD backups.

Got a firewire harddisk for backups though the other day, it does it automatically in the night, I feel much more relaxed about it now, I lost the entire web site once to a hard disk that sounded like an angle grinder so i've got some justifiable paranoia.