A CD player with several trays and several lasers, so you could play multiple CDs at once. I was thinking about the Flaming Lips' album "Zaireeka" and I was thinking how great it would be if you could play all four CDs in one CD player at once.
The possibilities for ambient soundscape / installations are endless - play a few ambient CDs together with a disc of whale noises and a disc of rain falling, and you've got yourself an in-home installation.-- Rubi, Feb 01 2004 //ambient soundscape// eh?
Motorhead, ACDC, local church choir and the soundtrack to Jaws.-- skinflaps, Nov 28 2006 Just download some mixing software & record all 4 CDs into one track. Much easier.-- jtp, Nov 28 2006 random, halfbakery