Work around bad Titanium Disks?

[TKoji]

I purchased titanium disks last year from the US - upon trying to install the game it will not go past disk 2 and get stuck on the acrylia.s3d file. I put off messing with it awhile and thought about trying to get the game installed. The disk was used and a little scratched but nothing major. I tried running it through a disk scratch fixer twice and still does not work. It came along with Echos of Faydwer which works fine but as I understand it, only titanium will work, correct?

Is there anyway to get around this problem with my disk? Can I force disk 3 onward to try to install then pick up the missing files from somewhere? I tried running disk three for installation but no dice, but again never really tried this before so I might be missing a trick.

edited: took out idea bout platinum pack...not the same as titanium..

Thanks!