Good old Sierra soundtrack

If you're looking for the great soundtracks of classic Sierra games you should definitely check Quest Studios. You'll find thousands of original MIDI files, and renewed MP3 music. Even the tracks of Quest for Glory 5, arguably one of the best soundstracks ever created, is free for download.

Many people, especially the newer generation of gamers will probably get headaches of all these tracks which I don't really understand with Dubstep being quite popular and all.