Yeah, with hearing certain music, namely Jane's Addiction. They must have been on my stereo when I first started with Hammer, since whenever I hear them it brings back memories of trying to setup Hammer manually and follow 'how to make a box room' tutorials. 
The strongest association I can conciously remember though, bizarrely, is an association between the old Amiga game 'Cadaver' and 'The Doors' record. My mate used to always play that album while I was playing Cadaver on his Amiga. Now, whenever I hear The Doors I just instantly remember playing Cadaver, and whenever I see a cadaver in a movie or something it'll seem like The Doors is on the stereo in the background, even though they aren't. My mate probably knew this all along and did it to f$$k with my head in later years. 
