General

• What are codecs?

Installation

• Do I need to uninstall my old version first?
• At the beginning of the installation I am asked if I want to uninstall a program X. Is that required?
• At the beginning of the installation I am asked if I want to uninstall RealPlayer. Is that required?
• "An error occurred while trying to replace the existing file: DeleteFile failed; code 5. Access denied."
• Is it possible to uninstall only a couple components of the K-Lite Codec Pack and keep the rest?
• Is there an uninstaller included?
• "Error writing to registry key"
• What is the difference between the available AVI splitters?
  

Playback issues

• I can't play a certain video file
• Many files won't play properly on Windows Vista
• I am not able to play AVI files
• I have trouble playing MPEG files (.mpg/.mpeg/.ts/etc)
• Some AVI files play without sound on Vista but work fine on XP
• I can't play AVI files anymore after using WinAVI Video Converter
• I have trouble playing incomplete AVI files in Media Player Classic
• I can't play .avi files containing H.264 video
• I can't play .avi files downloaded from video.google.com
• AVI files containing H.264 video play upside down in BS.Player and WMP
• Two audio tracks are being played simultaneously
• When playing movies with AC3 sound the video often skips
• The CPU usage is very high during video playback, any tips on how I can lower it?
• The video stutters
• The video is not synchronized with the audio
• The video plays very slow and parts are skipped. It is like I am watching a slideslow.
• The video stutters a lot when I play it fullscreen
• When I play the video full-screen, the screen goes to black while the audio continues
• The audio volume is really low
• The volume of voices/dialogs is very low compared to the other sounds
• When I try to play an .TS file I get the error: "Cannot render the file"
• Vorbis audio in MP4 container does not play
• MP3 files play too fast in Windows Media Player
• Video plays too fast in Windows Media Player
• The player freezes at the beginning of a MPEG-1 video
• How can I play AVI files from Blizzard Games?
• Some .mov files give an error in Windows Media Player
• How can I make 6 channel Windows Media audio play properly on stereo speakers?
• Seeking within an AVI file has a delay of a few seconds in Winamp
• Seeking within an AVI file is not smooth
• When using Vista Media Center the video freezes for a few seconds every few minutes
• I can't play WMV files.
• I can't open AVI files with WMV3 video in editing applications such as VirtualDub
• I get some message about acquiring a license when I play certain media files
• I have problems playing some RealMedia files
• I am having trouble playing .mkv files that contain "720p" or "x264" in their filename.

Video display issues

• The video is displayed only in the top half of the screen, upside down, and also doubled.
• The video contains one or more weird lines
• The video plays with the wrong colors
• All colors look completely wrong when playing WMV files
• The video plays with black and white colors in Windows Media Player
• Video playback is too dark on some files
• Video playback is too bright or too dark on almost all files or the colors are all messed up
• I am unable to play video in full screen
• I have troubles displaying RealMedia files on my secondary monitor

Subtitles

• How do I make the subtitles load and display automatically
• Embedded subtitles are not displayed
• How can I hide the subtitles?
• How can I configure DirectVobSub to load the subtitles but hide them by default?
• How can I select a different subtitle?
• How can I switch to a different subtitle language in MP4, MKV and OGM files?
• Windows Media Player shows no video when a subtitle file is present
• Is it possible to display the subtitles below the video?
• Karaoke subtitles are displayed as static subs
• No subtitles are displayed in Media Center but they do display in other players

Configuration

• Where can I configure the options of the various components of the K-Lite Codec Pack?
• How can I switch to a different audio track when playing MP4, MKV and OGM files?
• How can I configure my preferred language(s) for audio tracks and subtitles in Haali Media Splitter?
• How can I select the desired audio stream in Media Center?
• Is it possible to prevent ffdshow from being used by certain applications?

Media Player Classic

• How can I see which codecs and DirectShow filters MPC is using to play the my file?
• No video is displayed when playing a DVD in Media Player Classic
• Media Player Classic freezes for a while when I open the File menu
• "Media Player Classic could not render some of the pins in the graph" errors
• I have installed DC-DSP, but it doesn't seem to work when using Media Player Classic
• An ActiveMovie window appears when opening a DVD with Media Player Classic
• Media Player Classic gives a black screen on the TV-out
• The 'Save Image' and 'Save Thumbnails' functions in Media Player Classic give an error
• Media Player Classic freezes when trying to play a DVD
• Some files that contain unicode characters give a "Failed to render file" error in Media Player Classic
• Playback is not smooth (it stutters) even though the CPU usage is low
• QuickTime files from the GameTrailers website play very choppy
• Some .mov files play without sound
• How do I exit from the special Direct3D Fullscreen mode in MPC-HC?
• Opening .asx or .wax streams gives a "Failed to render file" error.
• What is the difference between .mov and .hdmov?
• Playback of QuickTime or RealMedia video is very pixelated
• I can't repeat (or stop and play again) RealMedia files in Media Player Classic
• Some .rm files cause Media Player Classic to crash
• I suddenly can no longer play .ram files in Media Player Classic. I get a "cannot render the file" error.
• I get a "DVD: Macrovision Failed" error when trying to play a DVD

Windows Media player

• How can I play DVDs in Windows Media Player?
• Windows Media Player shows no video when a subtitle file is present
• WMV HD videos play slow and without sound in Windows Media Player
• How do I play RealMedia files in Windows Media Player?
• I can't play streaming RealMedia in Windows Media Player

Thumbnails

• How do I completely disable thumbnail generation for video files in Windows XP?
• How do I disable thumbnail generation for a specific file extension?
• I am not getting thumbnails on AVI files
• No video thumbnails are generated on a 64-bit version of Windows

Windows issues

• How do I disable UAC in Vista?
• Windows Explorer crashes when browsing a folder that contains video files
• Some icons appear in the system tray when I browse a folder that contains video files in Windows Explorer
• How do I manually change a file association in Windows XP?
• How can I force a full re-install of DirectX?
• I don't have sound in some programs
• How to fix "COM Surrogate has stopped worked" errors on Windows Vista?
• Windows Vista shows "Windows Explorer has stopped working" and "Windows Explorer is restarting" messages.
• My computer shows a BSOD or reboots when I play an audio or video file
• Running regsvr32.exe gives error 0x80070005 on Vista
• What is System Restore?

Troubleshooting

• How can I find out which component of the codec pack is the cause of a certain problem I am having after installing the codec pack?
• How can I see which codecs and filters are being used to play a file?
• How can I generate a list of all codecs and filters that are installed on my system?
• How can I remove broken codecs and DirectShow filters?
• How can I remove a DirectShow filter?
• How can I remove an ACM audio codec?
• How can I remove a VFW video codec?

Miscellaneous

• My game crashes during playback of an in-game video
• I have no sound in Flash movies on websites like YouTube
• I have trouble with AVI2DVD
• I am unable to play .m2ts files in Sony Picture Motion Browser
• Where can I find some tutorials for encoding?
• Many ffdshow icons appear in the system tray when editing video in Adobe Premiere