Hey y'all! I'm in the process of selling and updating my camera equipment. As such, I have multiple PNY 64gb memory cards that need to have their data completely erased. Is there a process or application y'all use to remove ALL data from these cards? On smaller cards, I usually fill it up 2-3 times with junk pictures so I'm sure all my personal content is written over. Too many people are tech savvy and can easily pull up previous files, even when you format card and I just don't want them in my personal stuff. Thanks for the help!