Using vista windows. E drive could not recognise / read any CD or DVD. On dobbble click at E drive after incerting CD, message will appeare asking

do you want to burn the CD?
next cancel

I 've discovered if I write click at E drive from my computer and select copy and paste it at the disktop, then open it from there, it will work without problems. So what does this mean and I need to do?

Regards
M:)