The proper way to write "live CD"?

[nick]

Recently I've been following the name as written in the O'Reilly book "Knoppix Hacks", which separates the "live" from "CD", as in "live CD". While this appears to be the standard for that book, other articles on O'Reilly's website, along with wikipedia, use the term "LiveCD", with that capitalization. To confuse the matter, knoppix.net uses the term "Live Linux CD", and many live CD (LiveCD?) sites use many different terms.

I'm guilty of using the terms interchangeably, and it's time I stop. What is the proper term?

[nick]

Ok, a quick list of who uses what.

LiveCD
Wikipedia
Gentoo.org
Morphix.org
gnoppix.org/wiki
SLAX (also uses Live CD and Live Linux CD, but uses LiveCD more often)
FreeBSD LiveCD
OSNews.com
oreilly.com

Live CD
Ubuntu
knoppix.org (but only in the page title)

live CD
O'Reilly's Knoppix Hacks
suse

live cd
gnoppix.org

Live-CD
mandrake

Live Linux CD
knoppix.net

bootable CD
knoppix.org

[anony]

Hi
There is a LiveCD distro called Dead CD!

Local Linux Magazine called LiveCD: RTB (Ready To Boot)

[JLBlinux]

Any reason I noticed any linux which I called them either LiveCD or Live CD.

I don't care about what they calls them on listing in poll above as based on linux