In Windows 8 - Not always, but most of the time I get the Windows error message "CloneDVD mobile Application has stopped working" and your forced to close the program. I'm making a Generic DivX copy and as soon as I select a file source in the browser window, whether it be a hard drive or disc player, the error message appears. I am able to copy the very same disc with Clone DVD with never an issue, but attempting to copy that same disc with CloneDVD mobile a failure occurs.