oh, I wasn't aware that RPi 3 has only 100 mbit LAN. However, did you test 3D-bluray ISOs with RPi 4? Does this work properly?
I have a more specific question regarding the performance of RPi 4.
I have an Nvidia Shield, but unfortunately it cannot play MVC. Thus, I have also set up an RPi 3 with LibreElec to watch 3D-Bluray images. I can play the 3D isos with it, but the access to the ISOs is quite slow, and if I e.g. rewind a movie, the RPi 3 hangs or crashes. It seems to me that the RPi 3 is just not powerful enough to handle the movies inside the Iso images. My problem solving so far has been to convert the isos with makemkv to mkv (with the MVC track in it). These run smoothly and in 3D on the Pi 3, but the whole thing is quite cumbersome.
I am now thinking about whether it might work better with a Raspberry Pi 4 and ask if someone has already tried this with the RPi 4 and can report whether 3D iso images can be processed with the Pi 4 & LibreElec without problems.
Thanks a lot!
P.S.: My RPi 3 is connected via 1000 mbit LAN to a windows PC which serves the video files in my network.