So full that day I just realized the first recording yesterday (3 times 1:30) in a row without problems with a USB 2TB hard drive formatted in NTFS. the disc is read directly on a PC and on (MAC with PARAGON NTFS utility) to mount NTFS disks. I made the PARAGON NTFS NIOHC and it works very well. with a 2TB disk and highest quality you record 99h