Activity › Forums › Panasonic Cameras › HMC150 vs. HPX170 for corporate videography? Panasonic Cameras HMC150 vs. HPX170 for corporate videography? Daniel Schultz replied 15 years, 8 months ago 4 Members · 11 Replies Daniel Schultz August 30, 2010 at 11:06 am Sorry for that late reply. I believe the “check card” message comes up randomly. It came up when my card was in the camera for me. Dan S. Page 2 of 2 ← 1 2 Reply to this Discussion! Login or Sign Up Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me Reply to this Discussion! Login or Sign Up