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 plus many more) supported by many native, XAnim, and Win32 DLL codecs. You can watch VideoCD, SVCD, DVD, 3ivx, DivX 3/4/5 and even watch video files while you are downloading them!

RulesPlayer also has an onscreen display (OSD) for status information, nice big antialiased shaded subtitles and visual feedback for keyboard controls. European/ISO 8859-1,2 (Hungarian, English, Czech, etc), Cyrillic and Korean fonts are supported along with 12 subtitle formats (MicroDVD, SubRip, OGM, SubViewer, Sami, VPlayer, RT, SSA, AQTitle, JACOsub, PJS and our own: MPsub).

DVD subtitles (SPU streams, VOBsub and Closed Captions) are supported as well.