As with many large sample libraries, you may want to install the actual samples for Ethno on a separate hard drive. However, both the Ethno plug-in and the standalone application get installed on your startup drive. Normally, the installer will search for and locate where the library is, but if you open Ethno in standalone mode or use it as a plug-in and don't see the instruments and loops, make aliases of the sample libraries from your drives and place them in the same folder with the Ethno application. That way you are posting a "road map" to help Ethno locate the samples and loops. If it becomes necessary to move the samples in the future, just repeat the procedure.