So I have a 5th generation Video iPod.
I loaded up RockBox because I absolutely hate iTunes and because there isn't a Linux client anyway.
http://www.rockbox.org/
I love rockbox because on any operating system it just appears as a mass storage device and I can copy files / folders to it. Via the rockbox menu I can browse these folders the way they are on the drive or I can have my files indexed by artist / genre etc. It has a bunch of games (including doom), supports more file types (like FLAC), can be setup for cross-fading, and a bunch more.
I go to use it in my Camaro and it says there aren't any supported files
I am pretty upset. I plug this thing into a Windows Machine, and Mac OSX machine, a Linux machine, my PS3 and it can find the files just fine. The Camaro manual says that it can browse folders of regular USB drives. Well... thats what this thing looks like to everything else except the Camaro.
Oh well. Its still not gonna make me run the original Apple firmware on my iPod.