http://personal.inet.fi/cool/mediatek/
Unofficial Amstrad DivX Palyer site. There is a lot of useful programs and very good forum for MTK Firmware hacks and Modifications. :
http://amstrad3016.altervista.org (Hacked)
Cherry / New Ages MTK program and info page :
http://newage.mpeg4-players.info
One of the first MT13x9 based sites with basics of DivX player hardware and software :
http://1389.zewan.com
Good yahoo groups with discussion of all kind of problems and firmware updates. There is also a lot of useful programs and new firmwares what are updated in realtime. :
http://groups.yahoo.com/group/mt13x9
http://groups.yahoo.com/group/MEDIATEK1389