Camera Raw - Strange Box

[ben_clark_100]

Hi everyone - I am new to the discussions here at Canon Community and I am hoping someone will know what the strange box is on my photo I took in Canada of a Lake. Please see the attachment and post what you think it is, should I be concerned about it or is this just a fault in one of 100+ photos I took that day? 

Thank you!

[kvbarkley]

It is fioe corruption. If that was the only photo affected, it is probably OK, though you might want to low-level format the card.

[ebiggs1]

If it was on a single photo, toss that SD card and buy a new one.  Also, make sure you get top quality SD cards. If it shows up after a new SD card, call Canon 1 (800) 652-2666.