Hi, when I opened the brand new box - buyed in las vegas sony center - and after charging battery in right voltage I introduced a md - recorded with my old sony mz r50 - and I got exceptional sound!!! after two songs it stopped and told mo wait for charging: then nothing more. I changed md, even with 1giga disk, but when click play there was a little blue disk with numbers of tracks 1,2,3......45,46 etc I wired on my pc: sonic stage viewed my rh10 but said no disk I pushe every switch for a week every night but noting now I've contacted my Italian sony center and guys said they try to investigate but I believe no good results: I've to wait at minimum for one month! meanwhile I'll use my old md - it's fantastic and sounds very well - Its a pity! otherwise thank you very much kenlui!!!!!!!!! ciao next time I buy something in vacation I'll try immediately!