event prompted action

Hi there, forgive my ignorance, but i need help.
what ive got is a stack of burners and we burn cd-rom's on these during the day, we generally burn one at a time, but alternate which burner we use.
Id like to have an application that shows which drive we are burning on, so perhaps an icon on the desktop which flashes and tells me what drive we are using.
Any one who knows how i would do this i would greatly appreciate the help.
peace
George