Media Player Classic

Media Player Classic
ffdshow
ffdshow is DirectShow decoding filter for decompressing DIVX and XVID movies using libavcodec or xvid with rich set of video postprocessing filters. ffdshow can also be used as a separate postprocessing filter for other decoders.
Koepi's xvid build
XviD is an ISO MPEG-4 compliant video codec. It's no product, it's an open source project which is developed and maintained by lots of people from all over the world.
NIC's xvid build
XviD is an ISO MPEG-4 compliant video codec. It's no product, it's an open source project which is developed and maintained by lots of people from all over the world.
K-Lite Mega Codec Pack
Nimo Codec Pack
Real Alternative
QuickTime Alternative
阿飛的Real解碼器(Realpack)