QUOTE(mcklain @ Aug 15 2007, 02:23 AM)

Imagine that games could use 2 discs. That would be awesome.
Oh, wait...
The console goes to dashboard when you eject the disc, that sounds real effective to me.
"I want to play on CTF-FaceClassic guys, but I can't because I don't have a HDD so I can't download the map" - 360 core owner
"I want to play on it as well but I never installed my extra content add-on disc to my HDD" - 360 Pro/Premium/Elite owner
-or-
"I want to play on it too but its on the other disc let me reload the game so I can chose an add-on map to play" - 360 owner if there is not an option to install the maps to HDD or if you don't have one.
-or-
"I want to play on every map and I have no issues at all." - PS3 owner the map loads from the disc no swapping required or being a disc jockey to install all the add-on content or if a user mod is played it just downloads the needed files automatically to your built in HDD (similar to PC mods are in UT and 2003/2004) and then you connect to the match.
Oh and compression is not always the right answer, no matter how well something is compressed it WILL lose quality.
The mouse and keyboard is not supported by the 360 so that there will always be a level playing field, you can buy a device that will allow you to connect a mouse and keyboard and PlayStation style controller.
PC won't be missing any maps at all, there is more available space on a DVD formatted for computers than there is for the 360. PC users are also used to installing games on multiple CDs and DVDs, once the install is done they only need the one play disc and all the needed info is stored on the HDD.
M$ shot themselves in the foot by not making a HDD standard on the console. If there was one on every console like the xbox1 and the ps3 epic would have just had the maps uncompressed to the HDD and this issue would not be here.