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MacLC blog

Video on the Mac, explained.

HDR, formats, players, streaming, sound and motion, in plain words, with diagrams you can play with. Written by the people who make MacLC, the free video player for Apple Silicon Macs.

Every article.

Mac how-to8 min read

"App is damaged and can't be opened" on a Mac: the safe fix

When macOS says an app is damaged and should be moved to the Trash, the file is usually intact. Here is why it happens and the safe one-line Terminal fix.

Mac how-to9 min read

“Apple could not verify” an app? How to open it safely on a Mac

See what 'Apple could not verify that this app is free of malware' means on macOS Sequoia & Tahoe, why Open Anyway is needed, and how to open apps safely.

Formats & codecs8 min read

"This file isn't compatible with QuickTime Player": how to fix it

QuickTime says your file is not compatible? Learn why macOS rejects MKV, AVI, and WMV, and how to play them directly or remux them to MP4 in seconds.

HDR & picture7 min read

Chroma subsampling explained: 4:4:4 vs 4:2:2 vs 4:2:0

What is chroma subsampling? Learn why 4:2:0 is fine for movies, why 4:2:2 rules cameras, and why 4:2:0 causes blurry text on external Mac displays.

HDR & picture7 min read

Color gamut explained: Rec. 709 vs DCI-P3 vs Rec. 2020

Understanding color gamuts on Mac. Learn what the CIE 1931 diagram represents and how Rec. 709, Display P3, and Rec. 2020 shape video on Apple Silicon.

Sound7 min read

Movie audio formats explained: Atmos, TrueHD, DTS-HD and DDP

Understand Dolby Atmos, TrueHD, DTS-HD MA, and Dolby Digital Plus 5.1, the difference between lossy and lossless movie audio, and how Mac playback works.

Formats & codecs7 min read

1080p vs 4K: can you see the difference on a Mac?

1080p vs 4K on a Mac screen. Learn how viewing distance, Retina displays, video bitrate, and HDR determine which resolution looks sharper.

Motion9 min read

24 fps judder on 60 Hz screens, and why 120 Hz fixes it

Why 24 fps movies stutter on 60 Hz computer monitors. Learn how 3:2 pulldown creates telecine judder, and how 120 Hz ProMotion displays restore smooth cadence.

HDR & picture7 min read

8-bit vs 10-bit color: what it means and why skies band

Comparing 8-bit vs 10-bit color depth. Learn how 256 vs 1,024 quantization levels eliminate color banding in skies and dark movie scenes.

HDR & picture8 min read

DisplayHDR 400 vs 600 vs 1000: which is worth it for Mac?

Comparing DisplayHDR 400, 600, 1000, and True Black OLED tiers on macOS. Learn which monitor specs actually deliver true HDR without washed out desktop colors.

Formats & codecs6 min read

Does my Mac support AV1? Hardware decoding, explained

Wondering if your Mac supports AV1? Learn which Apple Silicon chips decode AV1 in hardware, how M1 and M2 play it in software, and what it means for battery.

HDR & picture6 min read

Does my Mac support HDR? Every model, explained

Does your Mac have a true HDR screen? Discover which MacBook Pro, MacBook Air, iMac, and external displays support authentic 1,600-nit HDR playback.

HDR & picture6 min read

Dolby Vision profiles 5, 7, 8.1, and 8.4 explained

Understand Dolby Vision profiles 5, 7, 8.1, and 8.4. Learn why Profile 5 turns green and purple, what MEL and FEL mean, and how to play them on your Mac.

Sound8 min read

Dynamic range compression: why movies are loud, then quiet

Dynamic range compression evens out movie audio by closing the gap between quiet dialogue and loud explosions. Learn how compressors work and how to fix audio.

Players & apps6 min read

Free Infuse alternatives for Mac in 2026

Looking for a free Infuse alternative for Mac? Compare the top local media libraries, open-source servers, and player apps without subscriptions.

Formats & codecs9 min read

H.264 vs H.265 (HEVC) vs AV1: video codecs compared

Compare H.264, HEVC, and AV1 video codecs. Learn how compression efficiency, licensing, encoder speeds, and Apple Silicon hardware decoding differ.

HDR & picture9 min read

HDR vs SDR: what's the difference, and can you see it on a Mac?

HDR delivers higher peak brightness, deeper contrast, and wider color than SDR. Learn how SDR vs HDR works and how Apple Silicon XDR screens display both.

HDR & picture10 min read

HDR10 vs Dolby Vision vs HDR10+ vs HLG: HDR formats compared

Compare HDR10, Dolby Vision, HDR10+, and HLG. Learn how static and dynamic metadata work, when formats look identical, and how your Mac renders them.

Mac how-to6 min read

How to Chromecast from a Mac (with or without Chrome)

Learn how to cast video from your Mac to a Chromecast device using Chrome, native media players like MacLC and VLC, or AirPlay alternatives.

Formats & codecs8 min read

How to add subtitles on a Mac (and fix sync drift)

Learn how to add subtitles to any video on Mac, understand SRT vs ASS formats, fix sync delays with shortcuts, and keep subtitles readable over HDR.

Mac how-to10 min read

How to AirPlay from a Mac to a TV (without quality loss)

Learn how to AirPlay from Mac to TV properly. Compare screen mirroring with direct app video streaming, fix AirPlay not showing up, and stream MKV files.

Formats & codecs9 min read

How to convert MKV to MP4 on a Mac (free and lossless)

Convert MKV to MP4 on Mac in seconds without losing quality. Learn how to remux with ffmpeg, tag HEVC for QuickTime, or convert using HandBrake.

Sound4 min read

How to fix AirPods and Bluetooth audio delay on a Mac

Fix Bluetooth and AirPods audio lag when watching movies on Mac. Understand why wireless latency happens and how to sync sound in any video player.

Mac how-to8 min read

How to organize a movie library on a Mac (no server needed)

Organize your Mac movie and TV show library without running a 24/7 server. Learn folder structures, S01E01 naming, batch renaming, and local player tools.

Formats & codecs7 min read

How to play FLAC on Mac (without converting to ALAC)

Learn how to play FLAC audio on Mac without converting to ALAC, why Apple Music rejects FLAC, how to manage your FLAC library, and when to convert.

Formats & codecs8 min read

How to play AVI and WMV files on a Mac: the complete guide

QuickTime can't open AVI or WMV files. Learn why macOS rejects them, why Flip4Mac no longer works, and how free players like MacLC open them on Apple Silicon.

Formats & codecs10 min read

How to play MKV files on a Mac (no converting)

Learn how to play MKV files on Mac without converting. See why QuickTime fails, how to open MKVs instantly in MacLC, and how to set a default player.

Formats & codecs8 min read

How to read a video file name: 2160p, x265, and HDR

Learn what 2160p, x265, WEB-DL, and DDP5.1 mean in video file names. Decode resolution, codec, audio, and source tags for the best playback on your Mac.

Streaming & torrents6 min read

How to watch YouTube in a Mac video player

How to stream YouTube in a native Mac video player using yt-dlp. Save battery life, avoid browser bloat, and play web video with hardware decoding.

Streaming & torrents9 min read

How torrent streaming works and how to do it safely

How torrent streaming plays video without waiting for a full download. Learn how piece deadlines, rarest-first swarms, and sequential buffers work.

Streaming & torrents8 min read

How video streaming works: adaptive bitrate, HLS and DASH

Learn how HLS and DASH stream video over the internet. Discover how m3u8 playlists, chunked segments, and adaptive bitrate ladders prevent buffering.

Players & apps4 min read

IINA vs VLC on a Mac: which should you use in 2026?

Choosing between IINA and VLC for your Mac? Compare Apple Silicon performance, HDR tone mapping, battery efficiency, and codec support.

Streaming & torrents7 min read

Is torrenting legal? What you need to know

BitTorrent is legal technology, but sharing copyrighted files without permission is not. Learn copyright enforcement rules across the US, Germany, France, and the UK.

Formats & codecs9 min read

MKV vs MP4: what is the difference, and which is better?

MKV and MP4 are containers, not codecs. Discover why their quality is identical, what MKV can store that MP4 cannot, and why Mac QuickTime refuses MKV.

Motion8 min read

Motion interpolation and the soap opera effect, explained

What motion interpolation is, why it triggers the soap opera effect, and how modern AI frame generation compares on 120 Hz displays.

Sound6 min read

No sound with DTS or AC-3 on Mac? Why and how to fix it

Why video plays with no sound on Mac when using DTS or AC-3 audio, why QuickTime stays silent, and how to fix audio playback using free players or remuxing.

Players & apps8 min read

Plex vs Jellyfin vs Infuse: which media setup do you need on a Mac?

Plex, Jellyfin, or Infuse? Understand the difference between media servers, client players, and local video playback on Apple Silicon Macs.

Formats & codecs8 min read

REMUX vs WEB-DL vs WEBRip: what video release types mean

Learn what REMUX, WEB-DL, WEBRip, and BluRay mean in video file names, how their video bitrates and audio quality compare, and whether remux files are worth it.

HDR & picture8 min read

SDR to HDR: can you turn ordinary video into HDR?

Can you convert SDR video to HDR? Learn how inverse tone mapping works, why crude conversions look fake, and how MacLC expands SDR highlights in real time.

Streaming & torrents7 min read

Seeders vs leechers vs peers: torrent terms explained

Understand the difference between seeders, leechers, and peers in BitTorrent. Learn how swarm health, seed ratios, and piece availability affect streaming.

Motion6 min read

SmoothVideo Project (SVP) on Mac: features and alternatives

How SmoothVideo Project (SVP 4 Mac) works, how it hooks into players via VapourSynth, and how built-in Apple Silicon motion engines compare.

Players & apps6 min read

Stremio on Mac: how it works, safety, and native alternatives

Learn how Stremio works on macOS, how its open add-on protocol delivers media, whether it is safe and legal, and how to stream in a native Mac player.

Sound7 min read

The best EQ settings for movies (and clearer dialogue)

The best equalizer settings for movies to fix quiet dialogue and harsh explosions. Learn how to shape frequencies for laptop speakers, TVs, and headphones.

Players & apps11 min read

The best video players for Mac in 2026

Compare the best video players for Mac in 2026. From MacLC and IINA to VLC and Infuse, find the right player for HDR, MKV files, and battery life.

Players & apps8 min read

The best VLC alternatives for Mac in 2026

Looking for a modern VLC alternative for Mac? Compare the top video players for Apple Silicon, from lightweight open-source apps to media libraries.

Players & apps7 min read

VLC for Mac in 2026: what works, what doesn't, and the alternatives

VLC media player for Mac plays almost any video format on Apple Silicon. Learn what works, where it falls short in 2026, and how to choose an alternative.

HDR & picture8 min read

What are nits? Screen brightness, explained

A nit measures display brightness. Learn what nits mean, how many nits you need for true HDR, and how bright Apple Silicon Mac screens actually get.

Players & apps7 min read

What are Stremio add-ons? How the open protocol works

How the Stremio add-on protocol works. Learn about manifest.json, stream endpoints, official vs community add-ons, and how to install them safely.

Streaming & torrents8 min read

What is a magnet link, and how does it work?

Understand how magnet links work without .torrent files. Learn how cryptographic info hashes, DHT, and BEP 9 metadata exchange locate peers.

HDR & picture7 min read

What is Dolby Vision? (and how to watch it on a Mac)

Dolby Vision uses dynamic metadata to adapt HDR video scene by scene. Discover how it beats HDR10 and how to play Dolby Vision files on an Apple Silicon Mac.

HDR & picture8 min read

What is EDR on a Mac? Extended Dynamic Range and XDR, explained

What is an XDR display, and how does Apple EDR work? Learn how macOS renders SDR and HDR side by side, how headroom works, and how to get true 1,600 nits.

HDR & picture11 min read

What is HDR? High dynamic range video, explained

HDR delivers brighter highlights, deeper contrast, and richer color than standard video. Learn what HDR means, how it differs from 4K, and how it works.

HDR & picture9 min read

What is tone mapping? Why HDR video needs it

What is tone mapping in HDR? Learn how displays fit 1,000- or 4,000-nit video onto dimmer screens, how BT.2390 works, and how to stop HDR looking dim.

Formats & codecs7 min read

What is video bitrate? How bits per second define quality

Understand what video bitrate is, how constant and variable bitrate work, why bitrate matters more than resolution, and what good 1080p and 4K bitrates are.

Streaming & torrents7 min read

Where to watch public domain and free legal movies

Where to find verified public domain films and free cinema: the Internet Archive, Library of Congress, Blender open movies, and library streaming with Kanopy.

Motion8 min read

Why are movies 24 fps?

Why movies are shot at 24 frames per second instead of 60. Learn the history of sound film, the 180-degree shutter rule, and why high frame rates look weird.

Streaming & torrents6 min read

Why does my video keep buffering? (and how to stop it)

Stop video buffering for good. Learn why streams stutter even on fast internet, how bitrate spikes drain your buffer, and practical steps to fix it.

HDR & picture6 min read

Why HDR looks washed out on a Mac (and how to fix it)

HDR video looks washed out, dim, or grey on your Mac? Discover the 5 real causes—from HDMI limited RGB to player tone mapping—and step-by-step fixes.

HDR & picture7 min read

Why iPhone HDR videos look too bright (or washed out)

iPhone HDR clips can look blindingly bright on Mac screens or washed out on PCs. Here is why Dolby Vision 8.4 acts up and how to fix it.

Sound8 min read

Why is movie dialogue so quiet? And how to fix it on a Mac

Why movie voices are hard to hear while explosions are deafening. Learn why 5.1 downmixing buries dialogue, and how to fix it with Voice Boost and EQ.

Mac how-to7 min read

Why video drains your MacBook battery and how to fix it

Discover why playing video drains your MacBook battery and learn how hardware decoding, codec choice, and display brightness can extend your playback time.