We are buying an HDX-900 camera, so the deck was inevitable for us. The time consuming disk archival process is not as attractive for our shop. DVD’s are slow to write, difficult to manage and not 100% reliable, if a DVD drive refuses to recognize an entire data DVD, you’re hosed. Same goes for Firewire drives. With tape, you have a real-time, more durable solution that is not too costly (aside from the deck cost).