Digital electronic audio player with cassette tape simulation feature and compatible with cassette tape players, and method therefore

A digital electronic audio player (DEAP) shaped similar to a cassette tape can be inserted into a cassette tape player such as a car cassette player. When the DEAP is inserted into a cassette player, the cassette tape play simulation and motion detection means sense the operation from the cassette player. When the play forward function of the cassette player is selected, the DEAP senses the operation from the player and plays the audio message in the memory; and output signal through the signal coupling magnetic head to the magnetic head of the cassette player just like a cassette tape. When the other functions (play backward, forward music search/fast forward, reverse music search/rewind etc.) are selected from the cassette player, the DEAP senses and dose the corresponding operations. The extension adaptor can be optionally mounted onto the digital electronic audio player, the new integrity works as one unit which has more memory, power supply and can communicate with a computer.