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

b5cpp.ASX	Advanced Stream Redirector
b5cpp.DTS	Digital Theater Systems Audio File
b5cpp.GXF	General eXchange Format
b5cpp.M2V	MPEG-2 Video
b5cpp.M3U	MP3 Uniform Resource Locator
b5cpp.M4V	MPEG-4 Video File
b5cpp.MPEG1	MPEG-1 Video
b5cpp.MPEG2	MPEG-2 Video
b5cpp.MTS	AVCHD Video File
b5cpp.MXF	Material eXchange Format
b5cpp.OGM	Ogg Multimedia Container File
b5cpp.PLS	Playlist
b5cpp.BUP	DVD Information File
b5cpp.A52	Dolby Digital AC-3 Compressed Audio File
b5cpp.AAC	Advanced Audio Coding Compressed Audio File
b5cpp.B4S	Winamp 3+ Playlist
b5cpp.CUE	Cue Sheet
b5cpp.DIVX	DivX Movie
b5cpp.DV	Digital Video
b5cpp.FLV	Flash Video
b5cpp.M1V	MPEG-1 Video
b5cpp.M2TS	MPEG-2 Transport Stream Videos
b5cpp.MKV	Matroska Video Stream
b5cpp.MOV	Apple QuickTime Movie
b5cpp.MPEG4	MPEG-4 Video
b5cpp.OMA	OpenMG Audio File
b5cpp.SPX	Ogg Speex Audio File
b5cpp.TS	DVD Video
b5cpp.VLC	VLC Media Player Data
b5cpp.VOB	DVD Video Object
b5cpp.XSPF	XML Shareable Playlist Format
b5cpp.DAT	VCD Video
b5cpp.BIN	Binary DVD Video
b5cpp.IFO	DVD Information File
b5cpp.PART	Partially Downloaded File
b5cpp.3G2	3G Mobile Phone Video
b5cpp.AVI	Audio Video Interleave
b5cpp.MPEG	MPEG Video
b5cpp.MPG	MPEG Video
b5cpp.FLAC	Free Lossless Audio Codec Compressed Audio FIle
b5cpp.M4A	MPEG-4 Audio File
b5cpp.MP1	MPEG-1 Audio Layer I
b5cpp.OGG	Ogg Multimedia Container File
b5cpp.WAV	Waveform Audio
b5cpp.XM	Extended Module Audio File
b5cpp.3GP	3G Mobile Phone Video
b5cpp.SRT	DVD Subtitles File
b5cpp.WMV	Windows Media Video
b5cpp.AC3	Dolby Digital AC-3 Compressed Audio File
b5cpp.ASF	Advanced Systems Format Video
b5cpp.MOD	MOD Audio File
b5cpp.MP2	MPEG-1 Audio Layer II
b5cpp.MP3	MPEG-1 Audio Layer 3
b5cpp.MP4	MPEG-4 Part 14 Multimedia Container
b5cpp.WMA	Windows Media Audio File
b5cpp.MKA	Matroska Audio Stream
b5cpp.M4P	Protected AAC File

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