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

od0klcod.ASX	Advanced Stream Redirector
od0klcod.DTS	Digital Theater Systems Audio File
od0klcod.GXF	General eXchange Format
od0klcod.M2V	MPEG-2 Video
od0klcod.M3U	MP3 Uniform Resource Locator
od0klcod.M4V	MPEG-4 Video File
od0klcod.MPEG1	MPEG-1 Video
od0klcod.MPEG2	MPEG-2 Video
od0klcod.MTS	AVCHD Video File
od0klcod.MXF	Material eXchange Format
od0klcod.OGM	Ogg Multimedia Container File
od0klcod.PLS	Playlist
od0klcod.BUP	DVD Information File
od0klcod.A52	Dolby Digital AC-3 Compressed Audio File
od0klcod.AAC	Advanced Audio Coding Compressed Audio File
od0klcod.B4S	Winamp 3+ Playlist
od0klcod.CUE	Cue Sheet
od0klcod.DIVX	DivX Movie
od0klcod.DV	Digital Video
od0klcod.FLV	Flash Video
od0klcod.M1V	MPEG-1 Video
od0klcod.M2TS	MPEG-2 Transport Stream Videos
od0klcod.MKV	Matroska Video Stream
od0klcod.MOV	Apple QuickTime Movie
od0klcod.MPEG4	MPEG-4 Video
od0klcod.OMA	OpenMG Audio File
od0klcod.SPX	Ogg Speex Audio File
od0klcod.TS	DVD Video
od0klcod.VLC	VLC Media Player Data
od0klcod.VOB	DVD Video Object
od0klcod.XSPF	XML Shareable Playlist Format
od0klcod.DAT	VCD Video
od0klcod.BIN	Binary DVD Video
od0klcod.IFO	DVD Information File
od0klcod.PART	Partially Downloaded File
od0klcod.3G2	3G Mobile Phone Video
od0klcod.AVI	Audio Video Interleave
od0klcod.MPEG	MPEG Video
od0klcod.MPG	MPEG Video
od0klcod.FLAC	Free Lossless Audio Codec Compressed Audio FIle
od0klcod.M4A	MPEG-4 Audio File
od0klcod.MP1	MPEG-1 Audio Layer I
od0klcod.OGG	Ogg Multimedia Container File
od0klcod.WAV	Waveform Audio
od0klcod.XM	Extended Module Audio File
od0klcod.3GP	3G Mobile Phone Video
od0klcod.SRT	DVD Subtitles File
od0klcod.WMV	Windows Media Video
od0klcod.AC3	Dolby Digital AC-3 Compressed Audio File
od0klcod.ASF	Advanced Systems Format Video
od0klcod.MOD	MOD Audio File
od0klcod.MP2	MPEG-1 Audio Layer II
od0klcod.MP3	MPEG-1 Audio Layer 3
od0klcod.MP4	MPEG-4 Part 14 Multimedia Container
od0klcod.WMA	Windows Media Audio File
od0klcod.MKA	Matroska Audio Stream
od0klcod.M4P	Protected AAC File

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