I just received my new Sharp MD-DR77 portable MD recorder and I am quite dissatisfied with one design feature. The alternate, AA battery case attachment point is a tiny screw that attaches to the case via the turn of a thumbwheel on the battery case. With the exception of the two, battery contact points,-- the entire weight and stability of the battery case is supported by this very small, short screw with fine threads. I can see how these threads could strip out or the pin break off or a very short time. The pin is hardly of great enough strength to support the weight of the battery case, let alone if one should accidently bump it, applying torque to the screw. How this was overlooked in it's design is beyond me. There should be at least TWO attachment screws on this case to provide even a minimal amount of support for the battery. I am very dissapointed.