You can put the "Files" on 4 cd's if you want, but they won't play in a CD player like that.
Cd players play 44Khz 16 bit audio, and some newer ones play mp3 files. But i've never heard of one playing FLAC or 96Khz anything.
Again you could put them on a DVD, but they would be likely still be in a computer format.
No offense, but you want to play them in the car?
surely CD-quality is sufficient in a car
with road noise and all.
SACD is a format that plays 96khz quality (i think) but unless you have a SACD player.....