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

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

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