hello! i have had my macbook pro just over a year with no problems. now i am trying to burn a folder with work in it (indesign, etc) but when i put a blank cd or dvd-r in, it is not recognized. it doesn't spin, no noise, etc. i have tried clicking on the folder and choosing the "burn this folder" option, but the result is the same. music and data cd's ARE recognized. i already have an appt. with the genius bar, but i'd really like to avoid the hassle if possible. any suggestions? i just did all firmware updates (had the problem before updates, thought maybe they would help - they did not), software updates.. suggestions please! thanks!!