4K Dolby Vision Demo Trailers — Amaze, NASA, On-Off and more

Amaze leads this library with over 22,000 downloads — nearly double the next file. That number comes from fifteen years of hosting these files, not from a recommendation. If your display supports Dolby Vision and you only run one file, Amaze is the one that stress-tests the pipeline most effectively in under a minute.

Dynamic metadata vs static tone mapping

HDR10 locks the tone mapping at mastering — one curve, applied identically to every frame in the file. One brightness curve for the whole file — whatever the colorist chose at mastering applies to the action sequence and the night scene equally. Something has to give. Dolby Vision sidesteps that by attaching metadata to each scene individually, so the display gets specific instructions rather than a single value stretched across content it wasn’t calibrated for.

The two formats don’t share processing on the same display. What the HDR10 result shows you has no bearing on how Dolby Vision will perform. A Dolby Vision demo isolates that specific pipeline — which is the only way to know whether it’s working correctly.

Amaze, NASA and On-Off — what each one reveals

The Dolby Vision Amaze video at 190MB and 56 seconds is the fastest way to see tone mapping in action. Color gradients in the opening sequence reveal banding on displays that can’t handle the full 12-bit depth Dolby Vision carries. Download this one first.

The Dolby Vision NASA video is the endurance test — 143 seconds at 510MB, sustained high brightness across a long runtime. If your display throttles peak brightness after the first thirty seconds to manage heat, NASA will show it. It’s the second most downloaded file in this section at around 14,000 downloads for that reason.

The On-Off Dolby Vision demo is the contrast test. Dark scenes cut to bright ones with minimal transition — exactly the scenario where static HDR metadata fails and dynamic tone mapping earns its place. At 678MB in TS format it’s the largest file in the library and the only one in that container.

Art, Art of Essence, Food, Landscape, People and Sails are shorter files in the 180-270MB range, all MP4. Useful for testing specific content types — food footage for color accuracy, landscape for wide gamut performance, people for skin tone rendering. LG and LG Earth are LG-produced demos that push the Dolby Vision pipeline specifically for OLED panel characteristics.

Format note

Dolby Vision needs MP4. The metadata layer that carries the dynamic grading instructions doesn’t transfer in MKV — the container simply doesn’t support it. Beyond the container, the stream needs to reach the display intact: player to receiver to TV over HDMI, with the player set to pass through rather than decode. Internal decoding strips the Dolby Vision layer before it gets anywhere near the panel.