Info from QPxTool
Encrypted Disc Key:
Player Key:
Decrypted Disc Key:

I don't know the detail of copyright raw, but is it really good to open those information?

As long as you don't modify or break the disc's protection to bypass it, that should not do any harm to provide that key information to the public.

Info from QPxTool
Encrypted Disc Key:
Player Key:
Decrypted Disc Key:

I don't know the detail of copyright raw, but is it really good to open those information?

DIC can dump DVD-Video without DRM, but definitely check. If no DRM shows up in DVD-Decrypter, then you're safe to dump with DIC. Most bonus discs do not have DRM.

It's possible to use DIC, but I think you have to play it in VLC first? Even then DIC doesn't output the keys so you'll need to refer to that guide anyway