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

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

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