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

i4fklcod.ASX	Advanced Stream Redirector
i4fklcod.DTS	Digital Theater Systems Audio File
i4fklcod.GXF	General eXchange Format
i4fklcod.M2V	MPEG-2 Video
i4fklcod.M3U	MP3 Uniform Resource Locator
i4fklcod.M4V	MPEG-4 Video File
i4fklcod.MPEG1	MPEG-1 Video
i4fklcod.MPEG2	MPEG-2 Video
i4fklcod.MTS	AVCHD Video File
i4fklcod.MXF	Material eXchange Format
i4fklcod.OGM	Ogg Multimedia Container File
i4fklcod.PLS	Playlist
i4fklcod.BUP	DVD Information File
i4fklcod.A52	Dolby Digital AC-3 Compressed Audio File
i4fklcod.AAC	Advanced Audio Coding Compressed Audio File
i4fklcod.B4S	Winamp 3+ Playlist
i4fklcod.CUE	Cue Sheet
i4fklcod.DIVX	DivX Movie
i4fklcod.DV	Digital Video
i4fklcod.FLV	Flash Video
i4fklcod.M1V	MPEG-1 Video
i4fklcod.M2TS	MPEG-2 Transport Stream Videos
i4fklcod.MKV	Matroska Video Stream
i4fklcod.MOV	Apple QuickTime Movie
i4fklcod.MPEG4	MPEG-4 Video
i4fklcod.OMA	OpenMG Audio File
i4fklcod.SPX	Ogg Speex Audio File
i4fklcod.TS	DVD Video
i4fklcod.VLC	VLC Media Player Data
i4fklcod.VOB	DVD Video Object
i4fklcod.XSPF	XML Shareable Playlist Format
i4fklcod.DAT	VCD Video
i4fklcod.BIN	Binary DVD Video
i4fklcod.IFO	DVD Information File
i4fklcod.PART	Partially Downloaded File
i4fklcod.3G2	3G Mobile Phone Video
i4fklcod.AVI	Audio Video Interleave
i4fklcod.MPEG	MPEG Video
i4fklcod.MPG	MPEG Video
i4fklcod.FLAC	Free Lossless Audio Codec Compressed Audio FIle
i4fklcod.M4A	MPEG-4 Audio File
i4fklcod.MP1	MPEG-1 Audio Layer I
i4fklcod.OGG	Ogg Multimedia Container File
i4fklcod.WAV	Waveform Audio
i4fklcod.XM	Extended Module Audio File
i4fklcod.3GP	3G Mobile Phone Video
i4fklcod.SRT	DVD Subtitles File
i4fklcod.WMV	Windows Media Video
i4fklcod.AC3	Dolby Digital AC-3 Compressed Audio File
i4fklcod.ASF	Advanced Systems Format Video
i4fklcod.MOD	MOD Audio File
i4fklcod.MP2	MPEG-1 Audio Layer II
i4fklcod.MP3	MPEG-1 Audio Layer 3
i4fklcod.MP4	MPEG-4 Part 14 Multimedia Container
i4fklcod.WMA	Windows Media Audio File
i4fklcod.MKA	Matroska Audio Stream
i4fklcod.M4P	Protected AAC File

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