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

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

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