at least 5,400 rpm, but a USB HDD of RAID type is not supported.
●● The availability of both recording and the Timeshift function may differ depending on picture quality and the free space on the hard disk drive.
●● USB memory stick is not compatible.
●● When the Timeshift is used to the gunwales, the pause may be cancelled.
●● When recording is performed by both the PVR (Personal Video Recorder)