Re: C100 MkII Mechanical issues
 

I've owned four C100's, C100 MK II, two C300's and currently own and using my second Canon 1DC. I've ONLY used SanDisk Extreme Pro Cards and have NEVER had one issue.

I believe you have "Counterfeit" or "Knock Off" media cards. When you say you bought from Amazon, did you buy from an Amazon authorized Seller on Amazon.com or directly from Amazon.com? The two are not the same.........