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| Latest versionThe latest version of the K-Lite Codec Pack is: 18.5.5 - Normal installer (2024-09-02) 18.5.5 - Cumulative update pack (2024-09-02) 18.5.3 - BETA installer (2024-08-31) DonateDo you like our software and want to make a small donation? Visit our donation page. Thanks! Tips for Windows Media PlayerFix playback issues with MP4/MOV/MKV/M2TS files. For example broken audio, video, or missing subtitles. Solutions:
Playback of HDR videoThese are videos with a wider color range than normal. First of all you need to use a player that supports HDR video. We recommend using MPC-HC player that is included with from K-Lite. WMP does not support HDR. You also need to use a video renderer that supports HDR. The K-Lite Codec Pack contains two renderers that are compatible with HDR: MPC Video Renderer and madVR. You can choose the renderer that MPC-HC uses during installation of the codec pack, or here after install: MPC Video Renderer is easier to use and works better with lower-end GPUs. MadVR has more advanced settings, but can be difficult to configure properly. Playback of UltraHD HDR videos requires modern hardware, with a graphics card (GPU) that supports hardware accelered decoding of 10-bit HEVC video. MPC Video Renderer also supports Dolby Vision (DoVi) (profiles 5/8.1/8.4 only). If you are using madVR on Windows 11 and HDR fails to turn on properly, then that could be due to a bug in madVR. You should see devices getting duplicated in its settings when this is the cause. You can fix this by downloading the latest madVR test build (v205 or newer). Overwrite the madVR files installed by the codec pack. Besides this bug fix, the only difference in the test builds are extra HDR tonemapping settings (all experimental). The test build also expires after a few months. It shows a warning when you need to update it. Solving audio problemsAudio isn't working in MPC-HC Change the audio renderer: If volume is very low:
Solutions for stuttering, crackling, drop outs, and lip sync issues:
Graphics driver configuration tweaksFix stuttering or bad video playback performance with NVIDIA drivers NVIDIA control panel > Manage 3D settings > Vertical Sync > On NVIDIA control panel > Manage 3D settings > Global Settings > Power Management Mode > Select Adaptive (instead of the default value Optimal) In some cases the Adaptive/Optimal choices are unavailable, and a Normal choice is used instead. You don't need to make any change in that situation. Washed out video with AMD 5000 and 6000 series GPUs Enable "Use Direct3D 11" in the settings of MPC Video Renderer. Fix screen tearing and/or video stuttering with AMD drivers You need to disable Enhanced Sync and Freesync in the AMD driver settings. Proper video playback requires a constant refresh rate. You can either disable these features globally in the driver settings, or you can create an application profile for MPC-HC and disable them there. To add an application profile: Tips for MadVRVideo is black for a few seconds at start of playback This may happen due to the Focus Assist feature of Windows 10 Build 1803. You can fix it by completely turning off Focus Assist, including its automatic rules. Stuttering with NVIDIA RTX cards madVR settings > rendering > exclusive mode > "how many frame shall be presented in advance" = 1 Make same change for windowed mode. Also read the graphics driver tweaks above. Report bugs!!!It is really important that you reports any problems that you may have. The developers of the various codecs can only fix problems if they know they exist. Don't expect others to have the same problems as you. Bugs often only occur with specific combinations of player/settings/hardware/drivers, or only with specific files. You can report bugs on our forum. The experts there will help diagnose your problem and can often provide you with a direct solution or forward the information to the developers if something needs to be fixed. Submit your feature requestsIf you got a suggestion then please submit it on our forum so we can give proper feedback. It often happens that the requested functionality is already available. We can teach you where to find those options. File doesn't play?Submit the details on our forum. We might be able to add support for that format in a future version. For example, if VLC is capable of playing the file, then we can usually make it work rather easily. | ||||||||||||||||
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