I have a dm500s and I managed to mount a usb hard drive for recording but when I try to do a system mount to save the Var items to the Hdd it works well but disables the permissions for the rcamd that u set to 755 I think, It works fine until I move the var items to the mount and I cant change the attributes to 755 and make it stick. I am using pli 3 any suggestions?