VLC media player is an open source video and audio player capable of playing almost any type of media including DVDs and VCDs. In addition to being able to play most video and audio files, VLC can also post free ads without registration
File extensions that can be opened by vlc-media-player

sr4.ASX	Advanced Stream Redirector
sr4.DTS	Digital Theater Systems Audio File
sr4.GXF	General eXchange Format
sr4.M2V	MPEG-2 Video
sr4.M3U	MP3 Uniform Resource Locator
sr4.M4V	MPEG-4 Video File
sr4.MPEG1	MPEG-1 Video
sr4.MPEG2	MPEG-2 Video
sr4.MTS	AVCHD Video File
sr4.MXF	Material eXchange Format
sr4.OGM	Ogg Multimedia Container File
sr4.PLS	Playlist
sr4.BUP	DVD Information File
sr4.A52	Dolby Digital AC-3 Compressed Audio File
sr4.AAC	Advanced Audio Coding Compressed Audio File
sr4.B4S	Winamp 3+ Playlist
sr4.CUE	Cue Sheet
sr4.DIVX	DivX Movie
sr4.DV	Digital Video
sr4.FLV	Flash Video
sr4.M1V	MPEG-1 Video
sr4.M2TS	MPEG-2 Transport Stream Videos
sr4.MKV	Matroska Video Stream
sr4.MOV	Apple QuickTime Movie
sr4.MPEG4	MPEG-4 Video
sr4.OMA	OpenMG Audio File
sr4.SPX	Ogg Speex Audio File
sr4.TS	DVD Video
sr4.VLC	VLC Media Player Data
sr4.VOB	DVD Video Object
sr4.XSPF	XML Shareable Playlist Format
sr4.DAT	VCD Video
sr4.BIN	Binary DVD Video
sr4.IFO	DVD Information File
sr4.PART	Partially Downloaded File
sr4.3G2	3G Mobile Phone Video
sr4.AVI	Audio Video Interleave
sr4.MPEG	MPEG Video
sr4.MPG	MPEG Video
sr4.FLAC	Free Lossless Audio Codec Compressed Audio FIle
sr4.M4A	MPEG-4 Audio File
sr4.MP1	MPEG-1 Audio Layer I
sr4.OGG	Ogg Multimedia Container File
sr4.WAV	Waveform Audio
sr4.XM	Extended Module Audio File
sr4.3GP	3G Mobile Phone Video
sr4.SRT	DVD Subtitles File
sr4.WMV	Windows Media Video
sr4.AC3	Dolby Digital AC-3 Compressed Audio File
sr4.ASF	Advanced Systems Format Video
sr4.MOD	MOD Audio File
sr4.MP2	MPEG-1 Audio Layer II
sr4.MP3	MPEG-1 Audio Layer 3
sr4.MP4	MPEG-4 Part 14 Multimedia Container
sr4.WMA	Windows Media Audio File
sr4.MKA	Matroska Audio Stream
sr4.M4P	Protected AAC File

asr4   bsr4   csr4   dsr4   esr4   fsr4   gsr4   hsr4   isr4   jsr4   ksr4   lsr4   msr4   nsr4   osr4   psr4   qsr4   rsr4   ssr4   tsr4   usr4   vsr4   wsr4   xsr4   ysr4   zsr4   0sr4   1sr4   2sr4   3sr4   4sr4   5sr4   6sr4   7sr4   8sr4   9sr4