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

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

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