- Okay to loose: Data I get can again, e.g. installation files for downloaded software or music I bought which I can download or rip again.
- Harder to replace: I have digitalized a lot of old VHS tapes. If I loose the data I can buy the movies again on DVD. It will cost some money, but it can be done.
- Ireplaceable: Pictures, e-mails, documents etc.
See in the next posting how I back these categories up.