CMC was established in 1978 in Taiwan, who is a public listed company and has been focusing on manufacturing magnetic and optical storage media like CD & DVD disk, as well as consumer electronic products like portable karaoke mic, MP4 recorder and IPTV box. Nowadays, we are the worlds largest OEM maker in the storage media with annual sales revenue up to NTD $21. 06 Billion (2006 / 3Q) .