These motors are Brushless DC motors. These are found in almost all modern CD/DVD drives,floppy drives,hard disc drives and i also found their large sized versions in some VCR/VCP,s. They are not very easy to get them working. One way could be using their genuine driver from the same device where they are salvaged.
The other thing is the hall effect sensors used in these motors for controlling their speed and positioning.These sensors are almost always placed under the main rotor.Opening these motors requires some careful use of tools.
There are a large number of driver Ic,s manufactured by many Semiconductor companies like Philips, ROHM etc. But the problem is that every motor may not be used with same driver IC, their size, number of windings,types on windings, hall effect sensor types may require specific Driver IC. I ones tried to use same type of motor without connecting its sensors to a micro controller with a little success. The motor spin in a crazy fashion with a lot of stalling and required a push with finger to start it. Both the driver board and motor itself got hot quickly. So i never tried this type of motor again. But there are some project on the Internet involving brush-less DC motors from different drives. Remember every such motor may not be used with same interface/ Driver board.