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

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

acctx   bcctx   ccctx   dcctx   ecctx   fcctx   gcctx   hcctx   icctx   jcctx   kcctx   lcctx   mcctx   ncctx   occtx   pcctx   qcctx   rcctx   scctx   tcctx   ucctx   vcctx   wcctx   xcctx   ycctx   zcctx   0cctx   1cctx   2cctx   3cctx   4cctx   5cctx   6cctx   7cctx   8cctx   9cctx