Table of Contents
Why We Reject 4K (By Default)
Purpose: This environment intentionally rejects 4K/UHD content by default. This is not due to technical limitations or lack of appreciation for quality, but a deliberate design choice grounded in efficiency, scalability, and real-world usability.
This system is built to serve a growing library with minimal ongoing maintenance — not to curate a boutique, cinephile archive.
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The Reality of 4K
4K content introduces significant costs that rarely translate into proportional real-world benefits.
These costs include:
- 2–4× larger file sizes
- Increased storage growth rates
- Higher CPU/GPU requirements for transcoding
- Reduced client compatibility
- Greater network bandwidth demands
In many cases, these tradeoffs deliver marginal visual improvements on typical viewing setups.
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Storage Efficiency
Consider the long-term storage impact:
- A well-encoded 1080p WEB or Bluray file typically ranges from 4–10 GB
- A comparable 4K encode often ranges from 15–40+ GB
At scale, this results in:
- Faster disk exhaustion
- More frequent storage expansions
- Increased backup and recovery costs
For episodic content, the inefficiency compounds rapidly.
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Playback Compatibility
Not all clients handle 4K equally well.
Common issues include:
- Forced server-side transcoding
- HDR tone-mapping inconsistencies
- Audio compatibility mismatches
- Buffering on remote or wireless clients
1080p content, by contrast, is:
- Universally playable
- Rarely transcoded
- Consistent across devices
- Easier to stream remotely
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Diminishing Returns
On most viewing setups:
- Screen sizes under ~75“
- Normal seating distances
- Mixed lighting conditions
The perceptual difference between a clean 1080p encode and a 4K encode is often negligible — especially once compression, streaming, and client limitations are factored in.
The return on investment simply isn’t there.
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Automation Impact
4K complicates automation:
- More frequent mis-grabs
- Increased reliance on custom formats
- Longer processing times in Unmanic
- Higher failure rates during transcodes
This environment values:
- Predictability
- Low-touch operation
- Long unattended runtimes
4K actively works against those goals.
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When 4K *Might* Make Sense
4K is not forbidden — it’s opt-out by design.
Exceptions may include:
- A small, curated set of reference films
- Dedicated home theater environments
- Separate libraries with different quality rules
If enabled, 4K should be:
- Isolated
- Intentional
- Manually managed
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Final Position
Rejecting 4K is not about settling for less — it’s about choosing the most efficient point on the quality curve.
A clean 1080p library:
- Looks excellent
- Scales predictably
- Streams reliably
- Requires less intervention
For this environment, that balance point is exactly where we want to be.
