rulesPlayer contains almost all the codecs you need to watch almost any movie or hear almost any sound file. rulesPlayer is a clean and easy-to-use GUI for MPlayer under Windows, written in D and DWT. rulesPlayer supports most popular media files (AVI, 3gp, ASF, FLV, Matroska, MOV QuickTime, MP4, NUT, Ogg, OGM, RealMedia, DivX) supported by many native, XAnim, and Win32 DLL codecs. You can watch VideoCD, SVCD, DVD, 3ivx, DivX 3/4/5 and even can watch video files while you are downloading them. Version 0.99.3 may include unspecified updates, enhancements, or bug fixes.