I just got off the phone with a Verizon rep. My DVR has erased ALL my recordings. I had movies going back 16 months and irreplacable news broadcasts. The rep said "sorry, I never heard of that happening" but this board clearly shows it does. If FIOS is going to charge me almost $3,000 a year and then offer me a statement credit for losing everything that is unacceptable. Comcast here I come.
I also had that happen. We went from FIOS apr-1 to FIOS APR-2 version update overnight. EVERYTHING was erased, all recording scheduled were deleted. Whole series of shows that I wait till end to watch at once are all gone. NICE GOING VERIZON!