There is no native way to do this from within LB but it is easily accomplished using NotePad++. Make sure LB is closed while you do this Go to your LB folder and open the Data subfolder then find your NES xml. Open the XML using NP++ and go up to search and select find, In the new form that opens type in the path to all of your NES games ending with the subfolder they are all in then click count to make sure you have the right path if no results are found you didn't type the right path. If you do indeed get a number for your count the go to the replace tab and put in your desired path and click replace all save the new xml close NP++ and open LB all should be fixed.