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

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

aah   bah   cah   dah   eah   fah   gah   hah   iah   jah   kah   lah   mah   nah   oah   pah   qah   rah   sah   tah   uah   vah   wah   xah   yah   zah   0ah   1ah   2ah   3ah   4ah   5ah   6ah   7ah   8ah   9ah