Install MKVToolnix and the DoVi_Scripts toolset .
(Replace audio_track1 , etc., with the actual audio stream files or track IDs extracted earlier).
: A streamlined app for macOS users that extracts RPU data and remuxes it into Profile 8.1. Download from the DV7toDV8 GitHub repository
Converting doesn't improve quality; it repackages existing data for better compatibility. Profile 8.1 cannot restore discarded EL data. convert dolby vision profile 7 to profile 8 new
is the definitive way to fix the frustrating "HDR10 fallback" and purple/green color corruption issues plaguing home media setups. While Profile 7 is the golden standard for physical 4K Ultra HD Blu-ray discs, the vast majority of consumer streaming devices—including the Apple TV 4K, Amazon Fire TV, and smart TV apps like Plex and Infuse—cannot parse its dual-layer structure. By executing a non-destructive remux using open-source tools, you can extract the dynamic metadata from Profile 7 and inject it into a universally compatible, single-layer Profile 8.1 stream without losing any core video quality. Why Profile 7 Fails (and Why Profile 8 Fixes It)
: Recent versions support Dolby Vision encoding and can convert Profile 7 to 8 by discarding the enhancement layer (EL) and keeping the base layer + RPU. Key Technical Considerations FEL vs. MEL : Profile 7 files use either a Full Enhancement Layer (FEL) Minimum Enhancement Layer (MEL) is safe to convert; you lose nothing but a redundant layer.
dovi_tool info -i video_converted.hevc
: Finally, remux the new Profile 8 video stream ( output.hevc ) with the original audio and subtitle tracks back into a Matroska (MKV) container.
To understand why a conversion is necessary, it helps to break down how Dolby Vision structures its profiles across different media formats.
To create a valid Profile 8.1 file, the 12-bit FEL data must be "baked" into the 10-bit BL stream. This creates a new, modified 10-bit base layer that incorporates the visual refinements of the 12-bit FEL into its own 10-bit color space. While the resulting file will play perfectly, the image is technically 10-bit, not 12-bit. Install MKVToolnix and the DoVi_Scripts toolset
Open the tool and load your .mkv or .ts file containing Profile 7.
Supports batch-processing for entire movie directories. Step-by-Step Execution