For my digital photos, I back up to external hard drive as soon as I've sorted/catalogued the stuff. Then once there's enough to burn a DVD, they get put on that too. Backup your backups! LOL
You're right Shopical. That's why you should always make two copies of a disk if you use DVD for backups and replace them with new every two years to be somehow safe.
Toshibs will launch the first HD-DVD in Europe on 15th November at £400 (599 euro), and two days later Sony will launch the PS3 with Blue-ray drive built in.