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

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

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