Hi, hoping someone can help. Computer has both cd & dvd drives. If I insert a music cd, it is read by both drives, so they seem to read OK, but as soon as I insert a cd-rw I get the message 'please insert disk' on both the cd and dvd writers. I am using a Verbatim CD_RW 4x disk and if I use it on another machine it works fine. Any help appreciated.:)