The German and Italian cd-rom releases of this feature Ford's actual voice, every other one has another voice actor. The .GOB files contain the data - anyone ever trying moving Ford's dubbed voice to the GOG version successfully?

If you have the original CDs, and you copy the following files inside the GOG version installation, you should have the results you are looking for:

- CD1.GOB
- CD2.GOB
- jonesopn.snm
- jonesopn_3.snm
- jonesopn_4.snm
- jonesopn_5.snm
- jonesopn_8.snm

... And I suppose you refer to the 'official' dubbers of Harrison Ford in those countries. There's no version that feature Ford's actual voice.