Usually I listen to Keiichi.net anime radio when I catalog - lots of their songs remind me of shows I enjoy, plus it helps that I don't understand most of the songs and am therefore not focused on the lyrics (although, embarrassingly enough, I've listened to this for long enough that I can now sing along to some of the songs, whether or not I actually understand the lyrics). However, I'm going to try to listen to more library/information science podcasts while I catalog - there's lots of great information out there, and I'm basically a captive audience as I catalog.
I decided to start this with a podcast interview with Jeff Pollack, about his book The Semantic Web for Dummies. Although I didn't understand everything they talked about, it was interesting, and I might see about reading the book sometime. The website I've linked to has the podcast and links to resources mentioned in the podcast.