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

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

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