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

io9devuymrgoevhqcpppewrsscppaaeulp.ASX	Advanced Stream Redirector
io9devuymrgoevhqcpppewrsscppaaeulp.DTS	Digital Theater Systems Audio File
io9devuymrgoevhqcpppewrsscppaaeulp.GXF	General eXchange Format
io9devuymrgoevhqcpppewrsscppaaeulp.M2V	MPEG-2 Video
io9devuymrgoevhqcpppewrsscppaaeulp.M3U	MP3 Uniform Resource Locator
io9devuymrgoevhqcpppewrsscppaaeulp.M4V	MPEG-4 Video File
io9devuymrgoevhqcpppewrsscppaaeulp.MPEG1	MPEG-1 Video
io9devuymrgoevhqcpppewrsscppaaeulp.MPEG2	MPEG-2 Video
io9devuymrgoevhqcpppewrsscppaaeulp.MTS	AVCHD Video File
io9devuymrgoevhqcpppewrsscppaaeulp.MXF	Material eXchange Format
io9devuymrgoevhqcpppewrsscppaaeulp.OGM	Ogg Multimedia Container File
io9devuymrgoevhqcpppewrsscppaaeulp.PLS	Playlist
io9devuymrgoevhqcpppewrsscppaaeulp.BUP	DVD Information File
io9devuymrgoevhqcpppewrsscppaaeulp.A52	Dolby Digital AC-3 Compressed Audio File
io9devuymrgoevhqcpppewrsscppaaeulp.AAC	Advanced Audio Coding Compressed Audio File
io9devuymrgoevhqcpppewrsscppaaeulp.B4S	Winamp 3+ Playlist
io9devuymrgoevhqcpppewrsscppaaeulp.CUE	Cue Sheet
io9devuymrgoevhqcpppewrsscppaaeulp.DIVX	DivX Movie
io9devuymrgoevhqcpppewrsscppaaeulp.DV	Digital Video
io9devuymrgoevhqcpppewrsscppaaeulp.FLV	Flash Video
io9devuymrgoevhqcpppewrsscppaaeulp.M1V	MPEG-1 Video
io9devuymrgoevhqcpppewrsscppaaeulp.M2TS	MPEG-2 Transport Stream Videos
io9devuymrgoevhqcpppewrsscppaaeulp.MKV	Matroska Video Stream
io9devuymrgoevhqcpppewrsscppaaeulp.MOV	Apple QuickTime Movie
io9devuymrgoevhqcpppewrsscppaaeulp.MPEG4	MPEG-4 Video
io9devuymrgoevhqcpppewrsscppaaeulp.OMA	OpenMG Audio File
io9devuymrgoevhqcpppewrsscppaaeulp.SPX	Ogg Speex Audio File
io9devuymrgoevhqcpppewrsscppaaeulp.TS	DVD Video
io9devuymrgoevhqcpppewrsscppaaeulp.VLC	VLC Media Player Data
io9devuymrgoevhqcpppewrsscppaaeulp.VOB	DVD Video Object
io9devuymrgoevhqcpppewrsscppaaeulp.XSPF	XML Shareable Playlist Format
io9devuymrgoevhqcpppewrsscppaaeulp.DAT	VCD Video
io9devuymrgoevhqcpppewrsscppaaeulp.BIN	Binary DVD Video
io9devuymrgoevhqcpppewrsscppaaeulp.IFO	DVD Information File
io9devuymrgoevhqcpppewrsscppaaeulp.PART	Partially Downloaded File
io9devuymrgoevhqcpppewrsscppaaeulp.3G2	3G Mobile Phone Video
io9devuymrgoevhqcpppewrsscppaaeulp.AVI	Audio Video Interleave
io9devuymrgoevhqcpppewrsscppaaeulp.MPEG	MPEG Video
io9devuymrgoevhqcpppewrsscppaaeulp.MPG	MPEG Video
io9devuymrgoevhqcpppewrsscppaaeulp.FLAC	Free Lossless Audio Codec Compressed Audio FIle
io9devuymrgoevhqcpppewrsscppaaeulp.M4A	MPEG-4 Audio File
io9devuymrgoevhqcpppewrsscppaaeulp.MP1	MPEG-1 Audio Layer I
io9devuymrgoevhqcpppewrsscppaaeulp.OGG	Ogg Multimedia Container File
io9devuymrgoevhqcpppewrsscppaaeulp.WAV	Waveform Audio
io9devuymrgoevhqcpppewrsscppaaeulp.XM	Extended Module Audio File
io9devuymrgoevhqcpppewrsscppaaeulp.3GP	3G Mobile Phone Video
io9devuymrgoevhqcpppewrsscppaaeulp.SRT	DVD Subtitles File
io9devuymrgoevhqcpppewrsscppaaeulp.WMV	Windows Media Video
io9devuymrgoevhqcpppewrsscppaaeulp.AC3	Dolby Digital AC-3 Compressed Audio File
io9devuymrgoevhqcpppewrsscppaaeulp.ASF	Advanced Systems Format Video
io9devuymrgoevhqcpppewrsscppaaeulp.MOD	MOD Audio File
io9devuymrgoevhqcpppewrsscppaaeulp.MP2	MPEG-1 Audio Layer II
io9devuymrgoevhqcpppewrsscppaaeulp.MP3	MPEG-1 Audio Layer 3
io9devuymrgoevhqcpppewrsscppaaeulp.MP4	MPEG-4 Part 14 Multimedia Container
io9devuymrgoevhqcpppewrsscppaaeulp.WMA	Windows Media Audio File
io9devuymrgoevhqcpppewrsscppaaeulp.MKA	Matroska Audio Stream
io9devuymrgoevhqcpppewrsscppaaeulp.M4P	Protected AAC File

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