X Codec Pack 3.0

Version 3.0 is a complete ground-up rebuild: native 64-bit, trimmed to 24.3 MB, and built around updated components that reflect nearly a decade of codec progress.

After years of dormancy, the pack is fully active again - the X Codec Pack 3.0 announcement covers what changed and what is still coming.

What's Inside X Codec Pack 3.0

The installer bundles six components tested to work together without conflicts on modern 64-bit Windows systems.

LAV Filters 0.81 is the core of the pack - a unified audio and video decoder that handles every format in active use today.

On the video side it decodes H.264, HEVC/H.265, VP9, and AV1, with hardware-accelerated paths on Intel, AMD, and NVIDIA GPUs.

On the audio side it covers AAC, HE-AAC, AC3 (Dolby Digital), EAC3 (Dolby Digital Plus), DTS, DTS-HD Master Audio, TrueHD, and Dolby Atmos - the full range of formats you encounter on Blu-ray rips, streaming downloads, and modern disc backups.

These are precisely the formats that cause silent playback or broken audio on Windows systems without a proper codec stack installed.

The same filter is the backbone of K-Lite Codec Pack, so you are getting the same decoding engine in a leaner package.

madVR 0.92.17 handles video rendering after LAV decodes the stream - applying high-quality upscaling, HDR tone-mapping, and color correction before the image reaches your display.

It is the preferred renderer for home theater setups where visual quality from HEVC and AV1 sources needs to be maximized.

MPC-HC 2.6.4 is the included media player - lightweight, fast to open, and customizable without touching system settings. It uses the LAV + madVR filter stack out of the box, so HEVC, TrueHD, and DTS-HD all work immediately after installation.

Users who prefer a more feature-rich environment can pair the same filter stack with MPC-BE, which continues active development alongside MPC-HC.

MPC Video Renderer is a new addition in v3.0, providing a modern DirectShow video rendering path that supports HDR passthrough and exclusive fullscreen mode.

It serves as a lighter alternative to madVR for systems where full upscaling processing is not required.

xy-VSFilter 3.0.0.209 handles subtitle rendering for SRT, ASS, SSA, and other external subtitle formats - the standard choice for foreign language content and anime where styled subtitles need pixel-accurate positioning alongside HEVC and high-bitrate video.

Matroska Splitter 1.8.9.143 provides dedicated MKV container handling, ensuring chapter support, multi-track audio selection, and forced subtitle detection all work correctly inside DirectShow-compatible players.

MKV is the dominant container for HEVC and AV1 encodes, so this is a critical component for modern media libraries.

Supported Formats

X Codec Pack 3.0 is built around LAV Filters 0.81, which means the format support list reflects current standards rather than a legacy compatibility checklist.

Video: H.264, HEVC/H.265, VP9, AV1, DivX, Xvid, MP4, MKV, AVI, MOV, WebM, RMVB, and more.

Audio: AAC, HE-AAC, AC3 (Dolby Digital), EAC3 (Dolby Digital Plus), DTS, DTS-HD Master Audio, TrueHD, Dolby Atmos, FLAC, Opus, Vorbis, and standard PCM formats.

Containers: Matroska (MKV/MKA), MP4, OGM, AVI, and all common wrapper formats.

The emphasis here matters - HEVC, EAC3, DTS-HD, and TrueHD are the formats that most commonly break playback on unpatched Windows 10 and 11 systems.

Installing X Codec Pack 3.0 resolves all of them in a single pass, with LAV Filters 0.81 handling decoding and hardware acceleration automatically once registered.

For a broader look at which next-generation formats pair well with this stack, the best modern codecs guide covers VP9 and HEVC extensions in detail.

Installation Options

X Codec Pack 3.0 offers two installation modes. Complete Mode installs all six components automatically - recommended for most users who want everything working immediately.

The installer detects and removes conflicting older codec registrations before writing new ones.

Custom Mode lets advanced users deselect specific components, which is useful if you already have a standalone LAV Filters installation and only need the rendering and player side.

Silent command-line installation is supported for IT administrators deploying the pack across multiple machines without user interaction.

X Codec Pack 3.0 vs. K-Lite

The main alternative in this category is K-Lite Codec Pack, which has the advantage of more frequent point releases and a tiered structure - Basic, Standard, Full, and Mega - that lets you match install size to your needs.

K-Lite Mega Codec Pack in particular overlaps significantly with X Codec Pack's component list, including the same LAV Filters core.

X Codec Pack 3.0 counters with a sharper focus: built exclusively for 64-bit Windows 10 and 11, a 24.3 MB installer, and a component list trimmed to the six filters that actually matter on modern systems.

There are no legacy 32-bit compatibility shims, no tiered versions to navigate, and no decisions to make beyond Complete or Custom.

If you want the same filter stack with additional bundled tools, LAV Filters Megamix is worth comparing. For a full side-by-side of every major codec pack, the best codec packs guide covers the current field in detail.

Companion Tools from the X Codec Pack Ecosystem

The X Codec Pack team has expanded beyond the main pack with three companion tools. X Audio Codec Pack is a purpose-built audio-only bundle for users whose video playback is fine but whose AC3, EAC3, or DTS audio broke after a Windows update - particularly relevant after the Windows 11 24H2 regression that silenced Dolby Digital playback for many users.

For converting audio between formats, X Audio Converter handles that as a standalone desktop tool, or you can convert directly in the browser with the free online audio converter on this site.

For diagnosing filter conflicts or identifying which codec is currently handling a given file, X Codec Inspector provides a full DirectShow filter graph breakdown.

System Requirements

• Windows 10 or 11, 64-bit.
• 24.3 MB disk space.
• Administrative privileges for installation.
• ARM64 supported.

Clean and Safe

X Codec Pack 3.0 is completely free of spyware, adware, and viruses.

The installer includes no bundled toolbars or unwanted software - just LAV Filters, madVR, MPC-HC, MPC Video Renderer, xy-VSFilter, and Matroska Splitter, registered cleanly and removable through Windows Add/Remove Programs.