The Hitchhiker's Guide to the Galaxy - Adams, Douglas

A 6 CD set containing the original 12 radio episodes of the Hitchhiker's Guide to the Galaxy. I've had this for ages, but it's hard to come by - and I've never seen it sold in the US (in this form) - this link goes to the Amazon UK store. I'm also not sure when it was originally released, either. They've since reprinted it, but this version I've had since the ;ate 1980's somewhere.