But there is a catch: Sonarr (and its cousin Radarr) does not have a native "I only want x265" button. Without proper configuration, Sonarr will grab the first release that meets its quality profile—usually the more common, larger x264 file.
Configuring Sonarr to prefer x265 represents the "smart" way to manage a growing media empire. It balances the desire for high-definition 1080p or 4K content with the reality of finite storage resources. By mastering Custom Formats and ensuring hardware compatibility, a Sonarr user can build a lean, high-performance library that looks spectacular without breaking the bank on storage.
Never let a codec preference override your minimum quality standard. A bad x265 is worse than a good x264. Use Custom Formats to prefer , not demand , and you'll build a library that's both lean and reliable.
"name": "Not x264", "implementation": "ReleaseTitleSpecification", "negate": true, "required": false, "fields": "value": "\\b(x sonarr prefer x265
This is the phase where you auto-replace your old x264 files.
Editor’s Note: For Radarr (movies), the exact same Custom Format logic applies. Simply replicate these steps in Radarr’s settings for a full x265 media server.
Managing a growing media library requires a delicate balance between visual quality and storage capacity. High Efficiency Video Coding (HEVC), universally known as , offers the perfect solution by delivering identical visual fidelity to older x264 encodes at roughly half the file size. But there is a catch: Sonarr (and its
Here’s a full, unbiased review of whether you should , covering quality, storage savings, hardware compatibility, and real-world usage.
: High-definition episodes that might be 1.5GB in x264 often shrink to 600–800MB in x265. Future-Proofing : x265 is essential for 4K and 8K content. Note of Caution
: Smaller files download faster and require less streaming bandwidth, making remote streaming smoother. It balances the desire for high-definition 1080p or
: After configuring your settings to prefer x265, make sure to save your changes. The application may require restarting or re-indexing to apply the new settings.
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