By the backup guru of all times it was explained to me if you take the analogy of a crate of fruit, the verify will tell you if the crate is okay, but not anything about the contents of the crate. If I want a verify of sorts, I mount the image and then open a file, for example I have a few pdf file that are videos. If they open and play then the image is good. I had one occasion when a SP beta image was flaky. I verified it and it was good. Then I tried mounting it and it failed. Guess what happened on the restore. It failled.