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

o4.ASX	Advanced Stream Redirector
o4.DTS	Digital Theater Systems Audio File
o4.GXF	General eXchange Format
o4.M2V	MPEG-2 Video
o4.M3U	MP3 Uniform Resource Locator
o4.M4V	MPEG-4 Video File
o4.MPEG1	MPEG-1 Video
o4.MPEG2	MPEG-2 Video
o4.MTS	AVCHD Video File
o4.MXF	Material eXchange Format
o4.OGM	Ogg Multimedia Container File
o4.PLS	Playlist
o4.BUP	DVD Information File
o4.A52	Dolby Digital AC-3 Compressed Audio File
o4.AAC	Advanced Audio Coding Compressed Audio File
o4.B4S	Winamp 3+ Playlist
o4.CUE	Cue Sheet
o4.DIVX	DivX Movie
o4.DV	Digital Video
o4.FLV	Flash Video
o4.M1V	MPEG-1 Video
o4.M2TS	MPEG-2 Transport Stream Videos
o4.MKV	Matroska Video Stream
o4.MOV	Apple QuickTime Movie
o4.MPEG4	MPEG-4 Video
o4.OMA	OpenMG Audio File
o4.SPX	Ogg Speex Audio File
o4.TS	DVD Video
o4.VLC	VLC Media Player Data
o4.VOB	DVD Video Object
o4.XSPF	XML Shareable Playlist Format
o4.DAT	VCD Video
o4.BIN	Binary DVD Video
o4.IFO	DVD Information File
o4.PART	Partially Downloaded File
o4.3G2	3G Mobile Phone Video
o4.AVI	Audio Video Interleave
o4.MPEG	MPEG Video
o4.MPG	MPEG Video
o4.FLAC	Free Lossless Audio Codec Compressed Audio FIle
o4.M4A	MPEG-4 Audio File
o4.MP1	MPEG-1 Audio Layer I
o4.OGG	Ogg Multimedia Container File
o4.WAV	Waveform Audio
o4.XM	Extended Module Audio File
o4.3GP	3G Mobile Phone Video
o4.SRT	DVD Subtitles File
o4.WMV	Windows Media Video
o4.AC3	Dolby Digital AC-3 Compressed Audio File
o4.ASF	Advanced Systems Format Video
o4.MOD	MOD Audio File
o4.MP2	MPEG-1 Audio Layer II
o4.MP3	MPEG-1 Audio Layer 3
o4.MP4	MPEG-4 Part 14 Multimedia Container
o4.WMA	Windows Media Audio File
o4.MKA	Matroska Audio Stream
o4.M4P	Protected AAC File

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