I have confirmed the operation and disk reading. The main unit has been disassembled, cleaned, and internal dust removed. I paid particular attention to the fan area, as dust tends to accumulate there. Contact points have been treated with contact restorer and carefully finished. * The controller has also been cleaned, as hand grease and dust can accumulate in the grooves, making it unsanitary. If both sticks are too loose, they are replaced with new ones. * We take great care in our work so that customers can use the product for a long time. Before shipping, we will check all operations and then ship. * We will accept returns if there are initial defects upon arrival. Please purchase with confidence. Although it is an old product, it can still be used if maintained.