The W9923QF is a high performance single-chip VCD decoder with MP3 playback feature. It performs real-time decompression of ISO/IEC11172 MPEG (Moving Picture Experts Group) streams, including system layer, audio and video data. It incorporates an 8-bit host interface and a CD interface which make it easy to use. Also, its versatile features help to build high-quality and cost-effective standalone VCD and MP3 applications. W9923QF is pin-to-pin compatible to the well-known VCD decoder, the W9925QF.