How can I play Blu-Ray's without a CERTIFICATE folder?



I have a few Blu-Ray discs that got damaged during a move - but I have some early experimental rips I made of them. The problem is that I have the BDMV folder for each disc, but not the CERTIFICATE folder. And I’ve noticed that PowerDVD Ultra doesn’t like playing Blu-Ray ISOs that don’t have a CERTIFICATE folder, even if AnyDVD is used.

Are there any solutions to this, or have I lost the discs completely?