I've burned cds before as of yesterday. However, today I just keep getting an error saying to insert burnable media. However, if i insert a dvd+r everything works fine. No purchased cds or cd-r's will work. I have windows xp sp2 and nero v6. I use dvd-x copy xpress for dvds and that still works. firmware driver bys1 for sony dw-d22a oem. any ideas?