SFist has pretty good coverage of the Chris Cobb's installation, There Is Nothing Wrong in This Whole Wide World, at Adobe Books in San Francisco's Mission District. All of the books have been rearranged by color. Strangely, peterme.com posted a story on the exact same thing on the same day. Except his was about a personal bookshelf rearranged by a bored girlfriend. Same effect, smaller scale. Still strangely usable.

Tried doing this with our own DVD collection and a friend's. All I can say is, a lot of DVDs have black packaging. Over half of them.

Another stunning color oriented project: Carpark (1994) by Nina Katchadourian, Steven Matheson, and Mark Tribe.