These protections are the stumbling block for smooth backup.
If you want to copy Blu-rays for personal playback, you shall first remove Blu-ray copy protections such as AACS (Advanced Access Content System), BD+, BD-J (Blu-ray Disc Java), RC (Region Code), Country Code, etc. Remove Any Blu-ray Copy Protection to Make Backup Possible All commercial Blu-rays are copy-protected to prevent illegal backups..