Just comment all your tracks with "Ripped/copied in Spain."

Copyright law will never be universal and will never truly match the spirit of what it's trying to protect. Use your own morality and if you're worried about someone coming to knock on your door, don't discuss what you're doing in public forums.

My own personal stance is that I have purchased a limited license to the music and that the format upon which it is delivered to me is irrelevant.