hello, i'm a newbie from the u.s. I just picked up a beosystem 5500 at a swap meet for $75! What I was wondering is, where can I find a belt for the cd50. Also, is there anyone out there with a good mmc5 cartridge they would part with without wanting an arm or my first born? Everything else in the system operates quite well. Any help, please let me know. manythanks, Greg