I have two Windows licenses of JRiver Media center (23 and 25 vers.) Because before I used a Windows PC. Now I have replaced it with an old Apple Mac Mini 1.83 Core 2 Duo with Osx 10.7.5 Lion (last O.S. for this machine) which is much better than the newer PC, however.I tried to install the Media Center 25 and 26 trials but when the program is launched they crash; the latest version that works on my Mac Mini is 24.0.78, would it be possible to buy the license for this old version? Is there any discount by having the JRiver 23 license for Windows?