The problem is the same, apparently these are obscure discs of some sort and Passkey can't find the data it needs to open them. The developers will need to check it and may need some additional files from your disc.
Also, please flush your Passkey log folder. To accomplish this,
1) Close Passkey
2) On your PC go to ...\username\(My)Documents\DVDFab Passkey and delete the folder named Log.
Passkey will create a new one when you restart it.