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

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

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