VLSI: VS1003 SD Card Mini Player
VS1003 SD Card Mini Player is an example of simplest possible MP3/WMA/WAV/MIDI audio player. It requires just SD card, boot EEPROM, and oscillator to make a complete high quality player.
The board shows the direction on how SD card support can be added to the existing system. In many accessory products the price erosion of the Flash memory can be overcome by using SD card instead of integrated Flash.