Formats, TVs and fixes.

play_circle MKV won’t play on Windows 11? How to fix it Open a supported MKV, choose available tracks and troubleshoot playback. memory How to play HEVC / H.265 on Windows 11 Why many PCs cannot decode H.265, and how to get the picture back. bolt AV1 playback on Windows, explained Built-in AV1 decoding, with supported graphics acceleration and a processor fallback. compare MP4 vs MKV — which should you keep? What each container actually holds, and when the difference matters. album Playing TS and M2TS Blu-ray files Disc rips open directly, chapters and surround audio included. history AVI file not playing on Windows 11? Old files from old drives, opening properly again. language WebM, VP9 and VP8 files Web-native video on the desktop, without a browser. devices_other MOV file won’t open on Windows? Phone and camera footage, opened natively. gradient What 10-bit video means for what you see Banding, colour depth, and why the number matters. error Unsupported codec errors: what to check Check the supported formats, the file and its source. error Video file corrupted, or won’t play to the end? How to tell an incomplete download from a damaged file, and what to try. visibility_off Sound but no picture? Fix a black screen When the video track will not decode, and the steps that bring it back.

cast Cast video to Chromecast from PC Supported formats, up to 4K HDR where supported, with your chosen subtitle on the TV. cast Cast video to Google TV from PC Cast built into the set — nothing to plug in. connected_tv Cast video to Android TV from PC Sets and boxes with Cast as standard. local_fire_department Cast video to Fire TV from Windows PC Fire TV Stick, Fire TV Cube and built-in Fire TV sets. stream Cast video to Roku from PC MKV, MP4 and the rest — no converting, found automatically. tv Cast video to Apple TV from Windows PC Reach an Apple TV box from Windows at the supported source and device quality. tv_gen Cast video to LG Smart TV from PC Connects straight to the television — no dongle needed. connected_tv Cast video to Samsung Smart TV from PC Connects straight to the set, with subtitles intact. connected_tv Cast video to Sony Bravia TV from PC Connect to supported Bravia sets from Windows. memory Cast video to NVIDIA Shield from PC Google Cast playback; direct play depends on the Shield model and file. router Cast video from PC to a DLNA-enabled Smart TV For a TV or receiver with a compatible DLNA media renderer. sync_problem Casting from PC to TV not working? TV not found, stutter, no sound or a dropped cast: the causes in order, and the fixes. movie Cast an MKV to the TV, subtitles included Send an MKV with its soundtrack and subtitle, without converting it first. devices_other Cast from a laptop without a Chromecast The TV or streaming box you already own may be one of the seven casting families. screen_share Casting vs screen mirroring from a Windows PC Why sending the video differs from mirroring your desktop, and when each one fits. subtitles Why subtitles vanish when you cast, and how to keep them The single most common casting complaint, solved.

upload_file How to add an external SRT subtitle file Load any subtitle file without renaming it to match the video. schedule Fix subtitles that are out of sync Shift the timing while the film plays, once per file. format_size Make subtitles easier to read Size, colour, outline and backing box for any room. translate Two subtitle tracks at once for language learning Native and target language on screen together. description SRT, ASS, VTT and PGS explained Which subtitle format does what, and which to choose. visibility_off Subtitles not showing on your MKV? What to check The handful of causes, in order of likelihood. translate Subtitles show question marks or boxes? Check the source encoding before saving a UTF-8 copy, and check font coverage for boxes.

hdr_on HDR tone mapping on an ordinary monitor Why HDR can look flat on an SDR screen, and how it is fitted to the display. contrast Why HDR looks washed out on a PC Check the display, Windows HDR configuration and picture controls. contrast Green, pink or distorted video on Windows? Test the graphics decoding path: update the driver, or switch AIX Player to the processor. speed 4K video lagging or stuttering on your PC? Check hardware decoding, drivers, storage and power settings. bolt Hardware acceleration on Windows Supported graphics decoding and processor fallback; results depend on the file and driver. tablet_mac Native on Snapdragon, Intel and AMD PCs Native x64 and Arm64 builds, the system requirements and hardware decoding. tune Picture adjustment worth making Brightness, contrast and aspect, without ruining the grade. tune Video stretched, squashed or with black bars? Choose the right picture fit, zoom past built-in black bars and rotate clips filmed sideways.

record_voice_over How to make movie dialogue louder on a PC Why modern mixes bury speech, and how to lift it. surround_sound Surround and lossless audio on a PC Keep the multi-channel mix instead of folding it to stereo. sync_problem Fix audio that is out of sync with the picture Nudge the delay until lips and words agree. equalizer Using the 10-band equaliser well Presets that suit films, and what to change by hand. surround_sound Video has picture but no sound? The audio track, the output device and surround soundtracks, checked in order.

hub Play Jellyfin, Emby and Plex on WindowsBrowse your server library and choose direct or server-converted quality. hub Play Jellyfin, Emby and Plex on WindowsBrowse your server library and choose direct or server-converted quality. hub Play Jellyfin, Emby and Plex on WindowsBrowse your server library and choose direct or server-converted quality. hub Play Jellyfin, Emby and Plex on WindowsBrowse your server library and choose direct or server-converted quality. lan Play videos from a NAS or network shareBrowse SMB folders on Windows and play on your PC for free. grid_view Keep a large video library organised Folders, playlists, favourites and search that keeps up. picture_in_picture_alt Watch video in picture-in-picture on Windows A floating window that stays on top while you work. bookmark Resume, bookmarks and chapters Pick up mid-film weeks later, and mark what matters. playlist_play Build playlists that play straight through Queue an evening, in the order you want it. keyboard Keyboard shortcuts worth learning A dozen shortcuts for common playback controls. movie Make AIX Player the default video player Open with for one file type, or Default apps in Windows Settings for all.