The ScotlandsPeople website has put the  Catholic Parish Register births and baptisms online. These include details of “French Royal post revolution refugees” and Sir Arthur Conan Doyle’s family tree.

Searching the indexes on this site’s database is generally free, but to view an original document you’ll need to pay anything between £5 and £13 (approx. 7 to 13 Euros or $9 to 18).

However, the Old Parish Register, Statutory Register and Census indexes are not free and you need to buy credits.  See the ScotlandsPeople website for details at  http://www.scotlandspeople.gov.uk