Pendrive is detected but cannot be formated?

throw it

hi
January 2009

My pendrive is light wave 4 GB, when i insert it my pc will detect it but when i see the properties it shows 0 bytes and when i tried to format it displays "Write the protected disk", i tried in Linux also but it doesnot work there.So pls if any one can provide me the solution, i will be highly obliged n thankfull.My email address is
kumargaurav182@gmail.com

Kumar Gaurav
September 2008