Just made a special mp3 player for adding your non-downloadable mp3 links. Add the link you've got via the musical note at the top of the reply box and your link will look like this:
It's flash, which means ppl can't right click and download, which is quite a good thing if you're a producer or dj and just want opinions about something you're not 100% happy with. If you're adding something you want ppl to download, just add a regular link to your post as normal
:)