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

v4k.ASX	Advanced Stream Redirector
v4k.DTS	Digital Theater Systems Audio File
v4k.GXF	General eXchange Format
v4k.M2V	MPEG-2 Video
v4k.M3U	MP3 Uniform Resource Locator
v4k.M4V	MPEG-4 Video File
v4k.MPEG1	MPEG-1 Video
v4k.MPEG2	MPEG-2 Video
v4k.MTS	AVCHD Video File
v4k.MXF	Material eXchange Format
v4k.OGM	Ogg Multimedia Container File
v4k.PLS	Playlist
v4k.BUP	DVD Information File
v4k.A52	Dolby Digital AC-3 Compressed Audio File
v4k.AAC	Advanced Audio Coding Compressed Audio File
v4k.B4S	Winamp 3+ Playlist
v4k.CUE	Cue Sheet
v4k.DIVX	DivX Movie
v4k.DV	Digital Video
v4k.FLV	Flash Video
v4k.M1V	MPEG-1 Video
v4k.M2TS	MPEG-2 Transport Stream Videos
v4k.MKV	Matroska Video Stream
v4k.MOV	Apple QuickTime Movie
v4k.MPEG4	MPEG-4 Video
v4k.OMA	OpenMG Audio File
v4k.SPX	Ogg Speex Audio File
v4k.TS	DVD Video
v4k.VLC	VLC Media Player Data
v4k.VOB	DVD Video Object
v4k.XSPF	XML Shareable Playlist Format
v4k.DAT	VCD Video
v4k.BIN	Binary DVD Video
v4k.IFO	DVD Information File
v4k.PART	Partially Downloaded File
v4k.3G2	3G Mobile Phone Video
v4k.AVI	Audio Video Interleave
v4k.MPEG	MPEG Video
v4k.MPG	MPEG Video
v4k.FLAC	Free Lossless Audio Codec Compressed Audio FIle
v4k.M4A	MPEG-4 Audio File
v4k.MP1	MPEG-1 Audio Layer I
v4k.OGG	Ogg Multimedia Container File
v4k.WAV	Waveform Audio
v4k.XM	Extended Module Audio File
v4k.3GP	3G Mobile Phone Video
v4k.SRT	DVD Subtitles File
v4k.WMV	Windows Media Video
v4k.AC3	Dolby Digital AC-3 Compressed Audio File
v4k.ASF	Advanced Systems Format Video
v4k.MOD	MOD Audio File
v4k.MP2	MPEG-1 Audio Layer II
v4k.MP3	MPEG-1 Audio Layer 3
v4k.MP4	MPEG-4 Part 14 Multimedia Container
v4k.WMA	Windows Media Audio File
v4k.MKA	Matroska Audio Stream
v4k.M4P	Protected AAC File

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