They have a black bottom.
Yes it will i own it it works great but if its a burnt disc it wont work
The cap.
red
Disc brakes
It would be a waste of precious metal if there was.
blue red and green
You can keep the disc in the air by hitting the bottom of the disc or hitting your hand with the spin on the rim. The more wind on the disc, the longer it will float.
Engine number will be located bottom right hand corner of windscreen (external) i.e. below tax disc and also there should be a metal plate near bonnet catch.
If you have the Subsistence version of MGS3, the second disc (Persistence) has the secret theatre (has funny parodies of in-game cutscenes), Snake vs. Monkey, the original 1987 Metal Gear, and the 1990 Metal Gear 2: Solid Snake. That used to be the disc you used to play MGS3 online, but that has been closed down.
optical dish
The metal disc used to make a coin is called a "coin blank" or, more formally, a "planchet." They also used to be called "flans," but that term is no longer as widely used.
Optical disc