Sofdec

• Extension: sfd
• Company: CRI
• Website: http://www.cri-mw.co.jp/products/product_sfd_e.htm
• Samples: Official website above, http://samples.mplayerhq.hu/game-formats/sfd/

SFD is a format commonly found on Sega Dreamcast console games, and is also available for a number of other video game consoles. The files package MPEG video with a custom ADPCM audio codec called CRI ADX ADPCM.