This spring Animal Collective released its latest offering, the three-LP Animal Crack Box. The collection of mostly early studio jams and odds ’n’ ends retails for a killer $92 a box—or I should say retailed for $92, since the thousand-unit limited-edition pressing sold out within the first day or two of availability.

In 2003, American composer William Basinski released a four-disc set entitled The Disintegration Loops. The music on these discs was not initially intended for release, nor was it even really composed music at all.