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

c04.ASX	Advanced Stream Redirector
c04.DTS	Digital Theater Systems Audio File
c04.GXF	General eXchange Format
c04.M2V	MPEG-2 Video
c04.M3U	MP3 Uniform Resource Locator
c04.M4V	MPEG-4 Video File
c04.MPEG1	MPEG-1 Video
c04.MPEG2	MPEG-2 Video
c04.MTS	AVCHD Video File
c04.MXF	Material eXchange Format
c04.OGM	Ogg Multimedia Container File
c04.PLS	Playlist
c04.BUP	DVD Information File
c04.A52	Dolby Digital AC-3 Compressed Audio File
c04.AAC	Advanced Audio Coding Compressed Audio File
c04.B4S	Winamp 3+ Playlist
c04.CUE	Cue Sheet
c04.DIVX	DivX Movie
c04.DV	Digital Video
c04.FLV	Flash Video
c04.M1V	MPEG-1 Video
c04.M2TS	MPEG-2 Transport Stream Videos
c04.MKV	Matroska Video Stream
c04.MOV	Apple QuickTime Movie
c04.MPEG4	MPEG-4 Video
c04.OMA	OpenMG Audio File
c04.SPX	Ogg Speex Audio File
c04.TS	DVD Video
c04.VLC	VLC Media Player Data
c04.VOB	DVD Video Object
c04.XSPF	XML Shareable Playlist Format
c04.DAT	VCD Video
c04.BIN	Binary DVD Video
c04.IFO	DVD Information File
c04.PART	Partially Downloaded File
c04.3G2	3G Mobile Phone Video
c04.AVI	Audio Video Interleave
c04.MPEG	MPEG Video
c04.MPG	MPEG Video
c04.FLAC	Free Lossless Audio Codec Compressed Audio FIle
c04.M4A	MPEG-4 Audio File
c04.MP1	MPEG-1 Audio Layer I
c04.OGG	Ogg Multimedia Container File
c04.WAV	Waveform Audio
c04.XM	Extended Module Audio File
c04.3GP	3G Mobile Phone Video
c04.SRT	DVD Subtitles File
c04.WMV	Windows Media Video
c04.AC3	Dolby Digital AC-3 Compressed Audio File
c04.ASF	Advanced Systems Format Video
c04.MOD	MOD Audio File
c04.MP2	MPEG-1 Audio Layer II
c04.MP3	MPEG-1 Audio Layer 3
c04.MP4	MPEG-4 Part 14 Multimedia Container
c04.WMA	Windows Media Audio File
c04.MKA	Matroska Audio Stream
c04.M4P	Protected AAC File

ac04   bc04   cc04   dc04   ec04   fc04   gc04   hc04   ic04   jc04   kc04   lc04   mc04   nc04   oc04   pc04   qc04   rc04   sc04   tc04   uc04   vc04   wc04   xc04   yc04   zc04   0c04   1c04   2c04   3c04   4c04   5c04   6c04   7c04   8c04   9c04