What are you using (e.g., Oppo UDP-203, Sony)?
: Users typically place the modified BDMV and CERTIFICATE folders inside a parent folder named AVCHD to ensure the player recognizes it.
Are you playing files from a or a NAS/Network share ?
– you might be thinking of:
: Use a tool like MakeMKV to rip your Blu-ray to a BDMV structure on your computer.