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

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

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