On a Rail 1 Half Life: Black Mesa Source The soundtrack is available on:
iTunes -
BandCamp lossless formats -
Amazon MP3 - ;child=B0096GA70W&qid=1347036494&sr=1-2
Google Play - ;feature=nav_result#?t=W251bGwsMSwyLDMsImFsYnVtLUJ4N2J4NzdsY3A1aHkzbWZraGhiazZjaHRzbSJd
Zune -