The MPZOO NEO is an integrated and versatile MP3 system. As an IDE hard-drive based system it can be fitted into a PC (where it is recognised as a hard drive) for downloading, sorting etc, then slipped onto the car, or hooked to a stereo - like we said, very versatile. As it is HDD based, you can fit an old unused drive, or buy 120Gb versioin, whichwould enable you to store 2300 complete CDs so you can store an entire music collection on ONE portable device.