The biggest issue there is no matter where you upload it, websites are way more zealous about takedowns than they used to be. Which puts Dreamwidth in danger, and certainly means people will regularly have their content removed (and eventually accounts suspended) from places like - Dropbox, Soundcloud, even independent servers.

Hosting content that isn't actually yours legally to host on Dreamwidth actually goes against their TOS, which also means risking an account suspension. :/