hi can anyone tell me the differance from a removable disk drive to a memory stick, been reading up about them, but now more confused then b4, thanks for any help
A removable disk drive is exactly that: a disk drive (similar to the one in your computer), which may be connected/ disconnected (usually by means of a USB port).
A memory stick consists of solid state flash memory (i,e, no disks and no other moving parts). It can appear to the operating system as a disk drive, and you can treat it as such, but generally speaking memory sticks have a much lower capacity then disk drives, draw less current, and are more rugged.