I work as a professional singer. I used my sony mz-n505 since 2 years for playback tracks. Last week and one minute before the show, and already on the stage and ready to sing, I tried to play a disk recorded an our ago, and it said it was "BLANK"!!!! I couldn´t solve the problem, and because of this I lost $150 from my salary... I tried with all my disks after that but after recording, I just can´t listen to them because it says they are "BLANK" disks! I use SONIC STAGE 3.3, with WINDOWS XP PRO SP1. Could anyone please give me any solution for this problem? I have to sing again in 2 days, and I´ve been not able to make my NET MD work properly! Thanks very much for your help. bye. geefe.