Backup BlueRay - file is corrupted

[rennsis]

Hey, so im trying to backup one of my bluerays, i alredy backuped a few others without any problems, with this BlueRay i have some issues, i cant get it to back up, i also orderd a new drive (LG BU40N) flashed it to 1.03 without any success.

Im getting on a few tracks the error -> "File is Corrupted" the disc itself looks good, no scratches, no dust.

Anyone know what i can do?

[Woodstock]

Try cleaning the disk. LOOKING "good" doesn't mean the disk doesn't have a film or other contamination.

[rennsis]

Try cleaning the disk. LOOKING "good" doesn't mean the disk doesn't have a film or other contamination.

Alredy tried that. Dont know what to do anymore. Every other BD just worked fine.

[rennsis]

Okay, a few hourse later.... i tried it again, washed the CD under water lol, now it just worked fine.

[Bandito]

I have the same thing this day.
Rambo III UHD
on a brand new ASUS BW-16D1HT 3.10