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

r4.ASX	Advanced Stream Redirector
r4.DTS	Digital Theater Systems Audio File
r4.GXF	General eXchange Format
r4.M2V	MPEG-2 Video
r4.M3U	MP3 Uniform Resource Locator
r4.M4V	MPEG-4 Video File
r4.MPEG1	MPEG-1 Video
r4.MPEG2	MPEG-2 Video
r4.MTS	AVCHD Video File
r4.MXF	Material eXchange Format
r4.OGM	Ogg Multimedia Container File
r4.PLS	Playlist
r4.BUP	DVD Information File
r4.A52	Dolby Digital AC-3 Compressed Audio File
r4.AAC	Advanced Audio Coding Compressed Audio File
r4.B4S	Winamp 3+ Playlist
r4.CUE	Cue Sheet
r4.DIVX	DivX Movie
r4.DV	Digital Video
r4.FLV	Flash Video
r4.M1V	MPEG-1 Video
r4.M2TS	MPEG-2 Transport Stream Videos
r4.MKV	Matroska Video Stream
r4.MOV	Apple QuickTime Movie
r4.MPEG4	MPEG-4 Video
r4.OMA	OpenMG Audio File
r4.SPX	Ogg Speex Audio File
r4.TS	DVD Video
r4.VLC	VLC Media Player Data
r4.VOB	DVD Video Object
r4.XSPF	XML Shareable Playlist Format
r4.DAT	VCD Video
r4.BIN	Binary DVD Video
r4.IFO	DVD Information File
r4.PART	Partially Downloaded File
r4.3G2	3G Mobile Phone Video
r4.AVI	Audio Video Interleave
r4.MPEG	MPEG Video
r4.MPG	MPEG Video
r4.FLAC	Free Lossless Audio Codec Compressed Audio FIle
r4.M4A	MPEG-4 Audio File
r4.MP1	MPEG-1 Audio Layer I
r4.OGG	Ogg Multimedia Container File
r4.WAV	Waveform Audio
r4.XM	Extended Module Audio File
r4.3GP	3G Mobile Phone Video
r4.SRT	DVD Subtitles File
r4.WMV	Windows Media Video
r4.AC3	Dolby Digital AC-3 Compressed Audio File
r4.ASF	Advanced Systems Format Video
r4.MOD	MOD Audio File
r4.MP2	MPEG-1 Audio Layer II
r4.MP3	MPEG-1 Audio Layer 3
r4.MP4	MPEG-4 Part 14 Multimedia Container
r4.WMA	Windows Media Audio File
r4.MKA	Matroska Audio Stream
r4.M4P	Protected AAC File

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