Mechanical failure of CD player in and out of storage. Marantz 63cd player can't be put into storage because of the mechanical failure of cd player. There are two main reasons for the mechanical failure of CD player in and out of storage. The first reason is that the gear transmission in and out of the library is not in place, which leads to the disc tray not being able to enter and exit the library normally. Second, the belt in and out of the warehouse is aging, slipping or broken. The first solution is to reset the in-and-out gear, which can be solved.