While you wait for answers, we may have found some information which could help you.
Click here for Pendrive Pen Drivehow can i fix a pen drive?
Memory stick - camera says it is full but it is not?
How can I fix my pen drive?
i get error message"please insert disc in the drive"?
my PC does not recognise my sony USB pendrive?
how to fix "file format not supported error"[pendrive,sony8gb]?