Try searching for them on sites that carry torrents, like isohunt. Just be sure if you do download anything that you scan it for viruses before you open the file.
Blockbuster has a new feature where you can download directly from their site, and I think Netflix does too, though at this time the selection is limited. I know Amazon does songs, not sure about music. None of these are free, but I thought I'd throw them in in case you don't have any luck otherwise.
at 2:31 PM on Jan. 21, 2009