Have you seen: Audio hardware and software configuration for audio?
Blu ray menus will work if they are non BD-J.
You can still watch the films though.
No need to set SMBv1 with Windows, unless you are trying to use browsing.
If you can enter IP and share name directly, you’ll be fine. See File sharing with a NAS, media server, windows share or other device.
If you have any questions just open a new thread and we will be glad to help
Cheers
Sam