SOD recent releases with this new filming style are really great, unlike some other scenes in the past the image quality is great (for 4k JAV). I purchased many of them from afesta and while bitrate is low (~20MBs) keep in mind that the codec is h265. As a rule of thumb h265 needs less than half of the bitrate for the same quality when comparing with h264 (codec used for most older releases), which makes this 20MBs of h265 and equivalent of >40MBs in h264.But the company that is really raising the level of JAV VR is SOD VR. Not only They are releasing more titles, but unlike KMP, they are varied, all proposing something different. Some last 2 or 3 hours, have very different scenes and scripts, and very crazy and funny stuff.
SOD VR has managed to create titles with very erotic and natural scenes, and camera shots never seen before. One example is DSVR-1051 (Download) , where you really feel that you are with two incredible and beautiful actresses such as Yuna Ogura and Mahiro Tadai.
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But JAV VR still has a lot of things to improve. The most unfortunate is the image quality, which is getting worse and worse. Most of the 2021 releases look worse than in 2019.
The only exception is KMP, the only company that has good image quality and definition at the level of western releases. But the resolution and bitrate are still low.
It's embarrassing to watch JAV VRs with a bitrate of 20 Mbps, everything looks blurry when there is movement, and backgrounds are pixelated. VR magnifies the image with the lenses, so more bitrate is needed than in a 2D movie.
We can find Western VRs at 8K and a bitrate of 150 Mbps, but JAV VR is stuck at 4K and 20 Mbps since 2018. It's like watching a DVD. This needs to improve in 2022.
I also wish they would increase the variety of scenes and type of actresses. I would like to see more lesbian VRs and more Mature women VRs.
I know you claimed a decline in image quality before, and while i havent looked into the bitrates in general, when cleaning up my library i didnt notice a decline in image quality. Most of the releases i got rid of were older (2019 mostly). But it was done just be visual inspection of the videos itself.
Image quality is more than just the pure bitrate (and codec). Lighting, camera positioning, postproduction play are huge role in how image quality is perceived. In my option considering JAV is at 4k the image quality is pretty amazing. When you look at 4k videos from western studios the videos dont keep up with the JAV quality at ALL.
Besides CzechVR non of the western studios is using 'real' 8k footage, so its basically just upscaled, although sometimes with AI. And even they use frame interpolation from 30 to 60fps because 8k cameras are still rare, even more rare are cameras able to record 8k@60fps.
I think we will see releases of first DSLRs able to shoot 8k@60fps this year and hopefully some MFT cameras as well, as these cameras are used from JAV studios.