Incredible, but true. The Aquarium Drunkard blog (found via BoingBoing) has a great post up with about 19 tracks from three 1969 sessions between American folk legends Johnny Cash and Bob Dylan. All are free to download, and four of them are "quadraphonic" mixes. What that means, I'm not sure, but it sounds great!
To tell the truth, I'd never been a real fan of Dylan (I know - apostasy), having grown up listening to my mom's records (and therefore determining it to be very un-cool), and had not really noticed Cash until he did the incredible cover version of Nine Inch Nails' "Hurt", which is much better than the original.
This collabo, however, is just too good to pass up. Check it out here.