Nirvana - Unplugged is incredible, probably my most watched DVD ever. Also have the cd which makes for great listening. It is great to hear a softer side to a band that mainly specialized in heavy rock music. The cover songs are performed brilliantly with many people claiming Nirvana's version of Man Who Sold The World superior to Bowie's. Kurt's rendition of Pennyroyal Tea is beautiful and sad both at the same time. The show finished with a cover of Lead Bellys "Where Did You Sleep Last Night" which is incredible, especially the final few moments where after howling the lyrics Kurt takes one quick look at the camera and you can see the torment in his eyes before he lets out a sigh and utters the final words.
Needless to say, I love that show and would reccomend it to anyone.