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

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

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