cd/dvd drive does not work

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http://www.linuxquestions.org – [B]Hi,i just realise my cd/dvd drive does not work,i donwload and boot mint 14 cinnamon 64 with no problemes,ejected the dvd.everithing looks fine.When i wanted to put a dvd in the tray and press eject,nothing happened.When i double clik on Computer in the desktop the cd/dvd drive is there.when i right clik on it,go to properties,this is that it says:Basic:unknow type(application/octet-stream) Size:unknown Location:computer/// Volume:unknown Accessed:unknown Modified:unknown Permissions:The permissions of "cs/dvd drive"could not be determined .What can i do about this?thanks (HowTos)