The iDAC [digital audio casette]

Virtually every car, new or old, has a standard cassette player in it. To be able to listen to CD music, without having an expensive CD player installed, car owners must buy a "tape adapter" for their cassette player that lets them connect a portable CD player to their cassette player. This adapter can be very unsightly and normally involves wires running from the tape player to the portable CD player, leading to a clumsy setup. The iDAC will be a device that functions just like a normal tape cassette, with the exception that it stores music in digital MP3 format. An iDAC owner need only store their music on the device (using a standard personal computer) and then insert it into the cassette player to listen to their music. No wires, no adapters, no fuss.The iDAC is a device that stores MPEG2 Layer 3 (MP3) music in non-volatile RAM. The device can be connected to a standard personal computer for programming, and can be used like a standard tape cassette in any tape player. Internal batteries, requiring no additional wire connections supply power.