Their not allowing research without charging fees. Otherwise they wouldn't make any revenue from the searches. An all day search which is considered 7 hours is €20.00 and that doesn't even include getting photocopies of any of the records and photocopies are cheaper than getting the actual certs. And you might not even be able to look at the register dates you want because of the huge numbers of people who are always there researching and who may be using the same registers you want. People come from all over the world as well as Ireland to look at those register books because it's the only central repository for the civil registration records in Ireland. It would be cheaper and easier for you to have them search the records for you than for anyone here to do it.