We have a Matshita CW-7503 CD-R unit running with Iomega hotburn software and windows 98 OS. The problem is getting a blank cd-r recognized as a blank. Iomega troubleshooting guide suggests certain units only recognize certain color cd's. Does anyone know if this model is one of these units and if it is what color does it recognize? By the way, mostly data and pictures will be burned. Thank you in advance for any help.