Sorry, can not recommend this program except for short-term use. Every second it runs it chews up 4-8KB of additional physical RAM that it never releases (or at least never released on my system) On my MBP with 8GB, first thing the app does is consume 11GB of virtual memory (THATS RIGHT, 11GB, as reported by top). The app has some serious memory problems that can cause a system to eventually crash.