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

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

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