If John the shop owner wants to sell bread for $10/loaf and you take it for free, that's immoral because it was his bread and he wanted $10 for it. If Tony the musician wants $10 for an mp3 copy of his latest single and you take it for free, that's immoral because it's his and he wants $10 for it.
Whether or not you deprive the person of money is a side issue, the idea of ownership matters more, to me at least. If I own something through purchase, creation or inheritance it's still mine and you have no right to take it, whether or not it deprives me of it, it's still immoral.
summary: my content, my terms.