Go to the following site GenuineCopies.tv.tv hacks remote and they will sell you a remote for £9.99 inc P/P with the press on one button will turn you Sony to multi region and it will also double up as a spare remote for your DVD. You could also sell the remote on, as it will make up to eight Sony RDR-HXD970 region free, so you could get your money back? It takes the hassle out of programming an all- for one or the hire of expensive one use remote or a? Service remote.
Hope this helps.