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

c99.ASX	Advanced Stream Redirector
c99.DTS	Digital Theater Systems Audio File
c99.GXF	General eXchange Format
c99.M2V	MPEG-2 Video
c99.M3U	MP3 Uniform Resource Locator
c99.M4V	MPEG-4 Video File
c99.MPEG1	MPEG-1 Video
c99.MPEG2	MPEG-2 Video
c99.MTS	AVCHD Video File
c99.MXF	Material eXchange Format
c99.OGM	Ogg Multimedia Container File
c99.PLS	Playlist
c99.BUP	DVD Information File
c99.A52	Dolby Digital AC-3 Compressed Audio File
c99.AAC	Advanced Audio Coding Compressed Audio File
c99.B4S	Winamp 3+ Playlist
c99.CUE	Cue Sheet
c99.DIVX	DivX Movie
c99.DV	Digital Video
c99.FLV	Flash Video
c99.M1V	MPEG-1 Video
c99.M2TS	MPEG-2 Transport Stream Videos
c99.MKV	Matroska Video Stream
c99.MOV	Apple QuickTime Movie
c99.MPEG4	MPEG-4 Video
c99.OMA	OpenMG Audio File
c99.SPX	Ogg Speex Audio File
c99.TS	DVD Video
c99.VLC	VLC Media Player Data
c99.VOB	DVD Video Object
c99.XSPF	XML Shareable Playlist Format
c99.DAT	VCD Video
c99.BIN	Binary DVD Video
c99.IFO	DVD Information File
c99.PART	Partially Downloaded File
c99.3G2	3G Mobile Phone Video
c99.AVI	Audio Video Interleave
c99.MPEG	MPEG Video
c99.MPG	MPEG Video
c99.FLAC	Free Lossless Audio Codec Compressed Audio FIle
c99.M4A	MPEG-4 Audio File
c99.MP1	MPEG-1 Audio Layer I
c99.OGG	Ogg Multimedia Container File
c99.WAV	Waveform Audio
c99.XM	Extended Module Audio File
c99.3GP	3G Mobile Phone Video
c99.SRT	DVD Subtitles File
c99.WMV	Windows Media Video
c99.AC3	Dolby Digital AC-3 Compressed Audio File
c99.ASF	Advanced Systems Format Video
c99.MOD	MOD Audio File
c99.MP2	MPEG-1 Audio Layer II
c99.MP3	MPEG-1 Audio Layer 3
c99.MP4	MPEG-4 Part 14 Multimedia Container
c99.WMA	Windows Media Audio File
c99.MKA	Matroska Audio Stream
c99.M4P	Protected AAC File

ac99   bc99   cc99   dc99   ec99   fc99   gc99   hc99   ic99   jc99   kc99   lc99   mc99   nc99   oc99   pc99   qc99   rc99   sc99   tc99   uc99   vc99   wc99   xc99   yc99   zc99   0c99   1c99   2c99   3c99   4c99   5c99   6c99   7c99   8c99   9c99