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

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

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