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

o7vecdevdo.ASX	Advanced Stream Redirector
o7vecdevdo.DTS	Digital Theater Systems Audio File
o7vecdevdo.GXF	General eXchange Format
o7vecdevdo.M2V	MPEG-2 Video
o7vecdevdo.M3U	MP3 Uniform Resource Locator
o7vecdevdo.M4V	MPEG-4 Video File
o7vecdevdo.MPEG1	MPEG-1 Video
o7vecdevdo.MPEG2	MPEG-2 Video
o7vecdevdo.MTS	AVCHD Video File
o7vecdevdo.MXF	Material eXchange Format
o7vecdevdo.OGM	Ogg Multimedia Container File
o7vecdevdo.PLS	Playlist
o7vecdevdo.BUP	DVD Information File
o7vecdevdo.A52	Dolby Digital AC-3 Compressed Audio File
o7vecdevdo.AAC	Advanced Audio Coding Compressed Audio File
o7vecdevdo.B4S	Winamp 3+ Playlist
o7vecdevdo.CUE	Cue Sheet
o7vecdevdo.DIVX	DivX Movie
o7vecdevdo.DV	Digital Video
o7vecdevdo.FLV	Flash Video
o7vecdevdo.M1V	MPEG-1 Video
o7vecdevdo.M2TS	MPEG-2 Transport Stream Videos
o7vecdevdo.MKV	Matroska Video Stream
o7vecdevdo.MOV	Apple QuickTime Movie
o7vecdevdo.MPEG4	MPEG-4 Video
o7vecdevdo.OMA	OpenMG Audio File
o7vecdevdo.SPX	Ogg Speex Audio File
o7vecdevdo.TS	DVD Video
o7vecdevdo.VLC	VLC Media Player Data
o7vecdevdo.VOB	DVD Video Object
o7vecdevdo.XSPF	XML Shareable Playlist Format
o7vecdevdo.DAT	VCD Video
o7vecdevdo.BIN	Binary DVD Video
o7vecdevdo.IFO	DVD Information File
o7vecdevdo.PART	Partially Downloaded File
o7vecdevdo.3G2	3G Mobile Phone Video
o7vecdevdo.AVI	Audio Video Interleave
o7vecdevdo.MPEG	MPEG Video
o7vecdevdo.MPG	MPEG Video
o7vecdevdo.FLAC	Free Lossless Audio Codec Compressed Audio FIle
o7vecdevdo.M4A	MPEG-4 Audio File
o7vecdevdo.MP1	MPEG-1 Audio Layer I
o7vecdevdo.OGG	Ogg Multimedia Container File
o7vecdevdo.WAV	Waveform Audio
o7vecdevdo.XM	Extended Module Audio File
o7vecdevdo.3GP	3G Mobile Phone Video
o7vecdevdo.SRT	DVD Subtitles File
o7vecdevdo.WMV	Windows Media Video
o7vecdevdo.AC3	Dolby Digital AC-3 Compressed Audio File
o7vecdevdo.ASF	Advanced Systems Format Video
o7vecdevdo.MOD	MOD Audio File
o7vecdevdo.MP2	MPEG-1 Audio Layer II
o7vecdevdo.MP3	MPEG-1 Audio Layer 3
o7vecdevdo.MP4	MPEG-4 Part 14 Multimedia Container
o7vecdevdo.WMA	Windows Media Audio File
o7vecdevdo.MKA	Matroska Audio Stream
o7vecdevdo.M4P	Protected AAC File

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