I have an old BAT VKD5 and was having problem with the transport and CDM12.4.
Just happened to have an old Philips CDR 765 that had the mechanical part and the laser that I replaced myself and is working great. i purchased another 765 but found that it had a different mechanical device but the CDM12.4/05 is the same made by Philips not in China.
Hope it gives someone an idea!!