This is just a heads up for people. I have many many backup copies of all my images so no data has been lost but I did run into a very disconcerting situation.
In 2010 I made several backup copies of all my images to be stored in multiple locations. I wanted to use a lossless format and chose TIFF. After 10 years I wanted to verify that the images were there and perhaps I had missed an image on my online storage.
The files are now unreadable after trying multiple machines, multiple operating systems, and multiple editing program including Photoshop CS5.
This is just a heads up that too many copies is not overkill.
The good thing is the images that I had saved for my wife are still readable. Whew