I recently purchased this BR burner: http://www.newegg.com/Product/Product.aspx?Item=N82E16827136181 I mounted it in this external enclosure: http://www.newegg.com/Product/Product.aspx?Item=N82E16817145064 This is all running on a 27" iMac Core i7 via firewire, and daisy chained off my GuardianMax RAID drive. This combo works great for ripping and playing, however, i do have one problem. When the player is on and i need to either reboot or shut down the system just hangs. It won't proceed until i power down the bluray burner. Any ideas on what is causing this or how it can be fixed?