Converting Dolby Vision Profile 7 (typically found on 4K Blu-rays) to Profile 8.1 (widely compatible with streaming devices like the Apple TV or Nvidia Shield) is primarily done by stripping the Enhancement Layer (EL) and injecting the Dynamic Metadata (RPU) directly into the Base Layer (BL). This process does not require re-encoding, so there is no loss in video quality. Recommended Tools
If you are deep into the world of 4K HDR remuxes, Blu-ray rips, and media servers (like Plex or Jellyfin), you have likely encountered a frustrating roadblock: .
✅ if you need broader device compatibility (Apple TV, Plex on Shield) and your source is MEL or you accept FEL loss. ❌ Avoid if you’re an archivist wanting full FEL preservation – keep original Profile 7 for future 12-bit displays.