Files that sit connecting for ages, then get stuck needing sources forever are usually fake. Look up files with Bitzi before download, see if any other users have rated the file (music doesn't get rated as often as movies).
If a file has heaps of sources but no Bitzi rating, chances are it's a fake. There's a link to Bitzi info in these threads, plus info & tips.

Fake files showing up in search results
How to find music (has tips for video as well)