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

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

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