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

k51.ASX	Advanced Stream Redirector
k51.DTS	Digital Theater Systems Audio File
k51.GXF	General eXchange Format
k51.M2V	MPEG-2 Video
k51.M3U	MP3 Uniform Resource Locator
k51.M4V	MPEG-4 Video File
k51.MPEG1	MPEG-1 Video
k51.MPEG2	MPEG-2 Video
k51.MTS	AVCHD Video File
k51.MXF	Material eXchange Format
k51.OGM	Ogg Multimedia Container File
k51.PLS	Playlist
k51.BUP	DVD Information File
k51.A52	Dolby Digital AC-3 Compressed Audio File
k51.AAC	Advanced Audio Coding Compressed Audio File
k51.B4S	Winamp 3+ Playlist
k51.CUE	Cue Sheet
k51.DIVX	DivX Movie
k51.DV	Digital Video
k51.FLV	Flash Video
k51.M1V	MPEG-1 Video
k51.M2TS	MPEG-2 Transport Stream Videos
k51.MKV	Matroska Video Stream
k51.MOV	Apple QuickTime Movie
k51.MPEG4	MPEG-4 Video
k51.OMA	OpenMG Audio File
k51.SPX	Ogg Speex Audio File
k51.TS	DVD Video
k51.VLC	VLC Media Player Data
k51.VOB	DVD Video Object
k51.XSPF	XML Shareable Playlist Format
k51.DAT	VCD Video
k51.BIN	Binary DVD Video
k51.IFO	DVD Information File
k51.PART	Partially Downloaded File
k51.3G2	3G Mobile Phone Video
k51.AVI	Audio Video Interleave
k51.MPEG	MPEG Video
k51.MPG	MPEG Video
k51.FLAC	Free Lossless Audio Codec Compressed Audio FIle
k51.M4A	MPEG-4 Audio File
k51.MP1	MPEG-1 Audio Layer I
k51.OGG	Ogg Multimedia Container File
k51.WAV	Waveform Audio
k51.XM	Extended Module Audio File
k51.3GP	3G Mobile Phone Video
k51.SRT	DVD Subtitles File
k51.WMV	Windows Media Video
k51.AC3	Dolby Digital AC-3 Compressed Audio File
k51.ASF	Advanced Systems Format Video
k51.MOD	MOD Audio File
k51.MP2	MPEG-1 Audio Layer II
k51.MP3	MPEG-1 Audio Layer 3
k51.MP4	MPEG-4 Part 14 Multimedia Container
k51.WMA	Windows Media Audio File
k51.MKA	Matroska Audio Stream
k51.M4P	Protected AAC File

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