Profile 5 created from UHD disks with Yusecope's tools is still better than HDR10 BL. It's more like HDR10+ with dynamic metadata with adjusted scene-by-scene brightness. However, you are not getting the correct color space ( it does not mean the picture is messed up ). With Profile 5 created from UHD disc, you are viewing the best picture possible on your Apple TV 4K with Infuse Pro and plus the convenience of it. I also own the Sony X700 and sometimes watch movies with Profile 7 FEL if it's available. Plus, own a Fire TV 4k Cube/Stick. The ladder is capable of playing Profile 8/7 MEL with correct color space created with Yusecope's tools.aboulfad wrote: ↑Thu Dec 24, 2020 8:24 pmHi, thank you ! in summary - Mode 2 of yusesope's tool is NOT doing a colorspace conversion from UHD P7 to P5, hence the potential artefacts. So what do we end up with in terms of pic quality for a single track single layer (STSL) P5 processed from an original UHD P7 ? (which is the only option for Infuse Pro->ATV4k users)shawnc22 wrote: ↑Thu Dec 24, 2020 5:03 pmWhen you’re doing conversions from a UHD disc to single layer, you’re going to lose data (neglible in MEL). ... The issue complicates when you further force the single-layer product to profile 5. Original profile 5 videos are encoded in a different colorspace than UHD discs, and the current available conversion process is not doing any colorspace conversions. When a player encounters a converted profile 5 video, it will play it in the p5 (IPTPQc2) colorspace, but the file is still encoded in the original UHD profile 7 colorspace— leading to potential chromatic abberations. Streaming services don’t have this issue simply because their content is encoded in profile 5 to begin with. The BL in these content is completely different than the one found on UHD discs. For more reading on BLs, ELs, RPUs, and anything DV/HDR related, I would start here: https://forum.blu-ray.com/showpost.php? ... ostcount=4.
I have been trying to disseminate differences between the media shared by yusesope in THIS post on my LG OLED65E7P (via usb3) and I find it hard to find some (comparing STSL P5 with STDL P7 on my TV).
Once I receive my gear, I will rip some DV movies that I also have on ATV4k and "try" to compare the PQ: ATV original P5 vs (UHD P7 -> Mode 2 - STSL P5). It seems though that the exercise of ripping UHD to eventually stream them to ATV4K is probably inferior in PQ but I wanted to have control on the audio part.
My choice goes to Fire TV if a disk encoded with MEL only and if it has FEL, I go with Sony X700. Again, I still don't mind using "Profile 5 " on my Apple TV 4K since I like the Infuse Pro.


