High Density CD-Audio Solutions?

Deagol writes "Like many of you, I've got a fairly good-sized music CD collection. I'm having a problem with managing the sheer number of CD's (about 350, which I know isn't a lot by some standards). My current setup consists of a Pioneer 6-CD changer CD player and 50 of the cartridges, each numbered, and a tome affectionately known as the "List O' Music" which is a 3-ring binder listing the contents of these 50 cartridges. Not horribly efficient, but the best I could manage when I started. I've recently began cloning my CDs, and using my burned copies for every-day use and keeping the rest in storage -- this came about after having to use paranoia to recover some child-scratched CDs. Along the way, I decided that the 6-CD cartridge thing isn't satisfactory anymore. I've thought about those 200-CD changers and maybe having a couple, and I've also thought about the MP3-type stereo components, though sound quality matters (I use flac for my CD archiving). For those of you with 100's to 1000's of CDs, how do you store and index them, either on the shelf or in the player?" Most of the questions like this involve managing large quantities of mp3's rather than disks.