Excessive Music Replay

I found a song recently that I really like, and I play it way too much. I play it often at home and work, at the gym on the iPod, and I've been wanting to burn a CD in order to play it as often as necessary in the car and on trips. I have held off, though, since I'm thinking I'll get sick of it if I do that. This is my MO: listen casually to various songs until I find one I like; then listen excessively until I have it memorized; potentially arrange it for guitar or keyboard; repeat. It means I don't know a lot of songs, but the ones I know, I know really well. Not sure what that says about me, but it probably has something to do with OCD.