Such laws vary from country to country and also according to the original copyright holders (companies.) Having the site as limited access would help. ie: sign in only, with only your family involved. Including friends though would be pushing it. However this does not necessarily protect the music from others since sites can potentially be hacked into. So many different variations on each aspect of this situation as suggested. Such as only an inferior quality copy of the music as compared to a lossless quality copy. As Blackhorse 70V suggested, making the music available to others to copy at all really is a major risk & most likely breaking laws of your local country and those of the copyrights.