When you're listening to something and you get distracted the tendency is to rewind because your brain tricks you into thinking you missed something. Unless said distraction actually drowned out what you were listening to the fact is you didn't miss anything. The real reason you're rewinding is because you DID miss something that interested you. Whatever you missed (which you didn't really miss) was something you want to hear again.
An interesting thing about the brain is the pleasure derived from hearing things over and over again. Music is an excellent example. Once the brain hears a song it likes radio is the only medium that can force it to listen to that song so much that it actually doesn't like it anymore. And even then, if it hears it years later, it will like it again.