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

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

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