Mr IMakeVideoGames got me thinking, and he was on the right track, (thanks for that Dude), and I have now found that the issue was mainly down to file location, so for anyone with the same problem, firstly you do need to check the ‘Additional Non-Asset Directories’ box in the game settings packaging section but make sure that you select ‘to copy’ rather than ‘to package’ otherwise you can’t write to it. Secondly, the folder for the databases must be in a folder, (so that you can select the location in the ‘Additional Non-Asset Directories’ box ), and that folder must be a direct descendent (or child) of the contents folder - any sub-sub directories do not work for some reason.