not CD at all.
My suggestion to you all is not a cd player at all.
IF you want removable media, like a CD.. then the only way to go is with MiniDisc.
they are like THE thing in europe. acording to my friend who visited japan, he said EVERYONE had a MD player, and the entire month he was there the only CD player he saw was on a computer.
I have a few minidiscs, and let me tell you, you CANT skip them. you would have better luck getting a cassette tape to skip. they are exactly the same thing as a CD just smaller. hold the same as a cd at the same CD quality. I have a Pioneer MD head unit in my cherokee, and i have a portable MD recorder wlakman thingy too.
MD never caught on big here in the States, but for size and skip proofness, you cant beat them. Look around on Ebay or online. most stores dont sell car units anymore, but if you want great quality and 100% skip proof, MD is my suggestion.
(not to mention people think you are like the coolest when you eject this tiny lil plastic thing out of your dash, they are always like "wow what is that?? i thought that was a cd player")
Only drawback is that you have to record your own disks. and to do that you need a MD recorder. so you basically need to buy 2 units, one to record and one to play in your car. I highly suggest a portable MD recorder. they are also skip proof, and even smaller than the only cassette walkmans. great for jogging or mowing the lawn or whatever. I have a Sharp portable recorder, and it goes like 10 hours on 1 charge, and is just an amazing lil unit, no wonder all the japs like these things so much.
My next suggestion to you, and i am hoping to go this way after i get some cash.....
Just get some crappy old cassette player that has good sound, and just use a cassette adapter and buy yourself one of those digital MP3 players. Like the IPod from mac, or like one of the cheapy ones you can get at best buy or whatever. they play for a long time, and usually hold a ton of music, and also wont skip at all.
the catch with those is you need a computer to download all your music.
I am thinking about just making a mount for my laptop like the cops use these days, and just playing my music right off the laptop. but leaving a laptop in a jeep is like asking someone to bust in.