He has a point... some drive which are a little bugged with autodetection have a problem validating the CD.
Rob K has noted he has used a crack to solve this problem, it's not exactly a pleasent solution - but if you do have a legitimate copy then it is atleast a solution.
if he is allowed to share this with you is really upto DBS's point of view on this situation and the fact of you being an official owner of the software or not.
Tsu'va Oni Ni Jyuuko Fiori Sei Tau!
One block follows the suit ... the whole suit of blocks is the path ... what have you found?