Basically, they both use the same sort of transmission medium, that is, FM modulation. The difference is sort of like a regular record player versus a CD player. They both use a disk, that spins, and the end result is the same, music plays from your speakers or headphones. But if you bump the record player, it skips, and you loose your music untill the needle finds the groove again and starts playing. A CD player will skip as well, but you really have to give it a good hard bump, and when it does skip, the music will start exactally where it left off.


Simple, eh?