🔸 What is 4K Stream Check?
It's a real-time filter that shows which 4K movies are available across services including Netflix, Prime Video, Disney+, Paramount+, HBO Max and Stan (AU) — based on format quality and platform support.

🔸 How are region matches handled?
Region filtering is automated. If a 4K title is available in your region and globally, it will be shown.

🔸 Why do some filters require selecting more than one service?
To enable fair cross-platform comparisons, 4K Stream Check requires a minimum of two streaming services selected. This ensures the listings are meaningful, not just isolated results.

🔸 What are HDR and audio format filters doing?
These detect whether a movie supports Dolby Vision, HDR10+ or Dolby Atmos based on metadata.

🔸 How are HDR formats ranked?
Dolby Vision is ranked highest, followed by HDR10+, HDR10 and SDR. Here's why Dolby Vision often wins:

• 🔹 Uses a 12-bit color pipeline (vs. 10-bit for HDR10/HDR10+), enabling smoother gradients and better tonal detail
• 🔹 Supports dynamic metadata — like HDR10+ — but with broader adoption and stricter hardware certification
• 🔹 Often mastered at higher peak brightness (up to 4000 nits or more)
• 🔹 Falls back to HDR10 on unsupported devices (HDR10+ can drop to SDR instead)

🔸 Is peak bitrate more important than average?
No — the tool prioritizes average bitrate over peak values when comparing services. Peak bitrate can be brief or misleading, while average bitrate better reflects real-world streaming quality across an entire movie.

🔸 Why does Apple TV (iTunes) show up if it’s rental/purchase only?
Apple TV (iTunes) is included as a high-quality reference point. Since it's a paid platform, many titles offer maximum available formats — including full Dolby Vision, HDR10+, Dolby Atmos audio and often higher bitrates — making it a valuable benchmark for comparing technical specs across subscription services.

🔸 Are results based on live availability?
Yes. Data is updated regularly and the filters reflect the current known status of each 4K title in real-world streaming catalogs.