Is checking what TiVoHD reports the only way to see if winmfs supersize worked? I saved the Mfsinfo data for both the previous 1TB drive and the current 1TB I will be installing into a second TiVoHD. I turned supersize ON for the recent drive but the following numbers are the same for both drives. The previous drives Mfsinfo data was saved over six months ago. Total SA SD Hours: 1040 Total DTV SD Hours: 908 100% Free Regardless of the supersize setting, these numbers are significantly below expected hours with a 1TB drive. I'm wondering if winmfs and TiVo calculate expected hours differently. Maybe the recording quality used in the calculations explain the difference.