Originally posted by D1N0 When dealing with a new card it was probably a manufacturing error. Sandisk is a reliable brand (for many photographers the only brand they will buy), but any brand can have mishaps. You can't extrapolate a mishap to and entire brand.
To D1N0: Good to know Sandisk is well thought of. Because I'm a newcomer to this (1 year) I had no idea whether it was the brand or just one bad card. Still have no idea but I thought it was a valid question.
To Not a Number: I've never had to add a DCIM folder when putting a new card in my camera so I'm not sure that is a valid issue.
To Aslyfox: I have no idea whether it was a card error or a camera error. That's why I was asking if anybody had experienced the same thing.
Thank you all for your responses. I will update if this card also goes belly up. Joyce Keay