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

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

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