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

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

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