That still isn't legit though Ugo, like for example:
Owning an official original copy of WA on disc, and using that to burn an image from the original, and using the iso is legit and allowed.
Having an original copy of WA on disc, but downloading and using a cracked version of WA is not legit.
Buying Halo 2 for Vista, then downloading a cracked illegal version for Windows is still not legit.
Sort of like buying a DVD and burning a copy for you're own private use, it's allowed. But you are not allowed to purchase a copy from someone else even if you do own it.