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

i4o.ASX	Advanced Stream Redirector
i4o.DTS	Digital Theater Systems Audio File
i4o.GXF	General eXchange Format
i4o.M2V	MPEG-2 Video
i4o.M3U	MP3 Uniform Resource Locator
i4o.M4V	MPEG-4 Video File
i4o.MPEG1	MPEG-1 Video
i4o.MPEG2	MPEG-2 Video
i4o.MTS	AVCHD Video File
i4o.MXF	Material eXchange Format
i4o.OGM	Ogg Multimedia Container File
i4o.PLS	Playlist
i4o.BUP	DVD Information File
i4o.A52	Dolby Digital AC-3 Compressed Audio File
i4o.AAC	Advanced Audio Coding Compressed Audio File
i4o.B4S	Winamp 3+ Playlist
i4o.CUE	Cue Sheet
i4o.DIVX	DivX Movie
i4o.DV	Digital Video
i4o.FLV	Flash Video
i4o.M1V	MPEG-1 Video
i4o.M2TS	MPEG-2 Transport Stream Videos
i4o.MKV	Matroska Video Stream
i4o.MOV	Apple QuickTime Movie
i4o.MPEG4	MPEG-4 Video
i4o.OMA	OpenMG Audio File
i4o.SPX	Ogg Speex Audio File
i4o.TS	DVD Video
i4o.VLC	VLC Media Player Data
i4o.VOB	DVD Video Object
i4o.XSPF	XML Shareable Playlist Format
i4o.DAT	VCD Video
i4o.BIN	Binary DVD Video
i4o.IFO	DVD Information File
i4o.PART	Partially Downloaded File
i4o.3G2	3G Mobile Phone Video
i4o.AVI	Audio Video Interleave
i4o.MPEG	MPEG Video
i4o.MPG	MPEG Video
i4o.FLAC	Free Lossless Audio Codec Compressed Audio FIle
i4o.M4A	MPEG-4 Audio File
i4o.MP1	MPEG-1 Audio Layer I
i4o.OGG	Ogg Multimedia Container File
i4o.WAV	Waveform Audio
i4o.XM	Extended Module Audio File
i4o.3GP	3G Mobile Phone Video
i4o.SRT	DVD Subtitles File
i4o.WMV	Windows Media Video
i4o.AC3	Dolby Digital AC-3 Compressed Audio File
i4o.ASF	Advanced Systems Format Video
i4o.MOD	MOD Audio File
i4o.MP2	MPEG-1 Audio Layer II
i4o.MP3	MPEG-1 Audio Layer 3
i4o.MP4	MPEG-4 Part 14 Multimedia Container
i4o.WMA	Windows Media Audio File
i4o.MKA	Matroska Audio Stream
i4o.M4P	Protected AAC File

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