Downloading and Streaming are two different royalty models. Legally, you have to pay more expensive royalties if you download music (referred to as "right to r

Downloading and Streaming are two different royalty models. Legally, you have to pay more expensive royalties if you download music (referred to as "right to reproduce") rather than stream (right to transmit), so a special type of downloaded file must be used that can't be exported in any way. This is what Apple are prohibiting.