I may begin sharing various content (music and video) via one or more of my Twitter profiles.  At times I would like to allow people to view but not be able to download my files.  This is important especially for my music which I would like them to hear but don't feel it's right for them to download the MP3s without paying the artist for the music.

Is it possible to grant view (listen) but not download access when I send a public link via e-mail or Twitter?