Today, when I was removing one the DVDs from my Universal release of the Abbott and Costello franchise collection, I noted that the hub in the case had an unusually strong grip on the disc itself. It was so tight that I was unable to freely rotate the DVD on the hub and I had a hard time removing it. I've noted that virtually all my other cases seem to allow fairly easy removal and permit the disc to rotate easily. Will this "tight grip" eventually have an adverse effect on the DVD itself? Thanks for any comments.