Patient welfare depends on accurate image reproduction. MediDisc DVD-R media incorporates a specially developed proprietary Metal Azo recording dye that provides superior performance and reliable data recording at all writing speeds. Metal Azo technology also provides the long archival life required for healthcare image and records retention by protecting critical patient data from heat, humidity, UV light, and other environmental elements. Disc-to-disc consistency is another key to the high quality of MediDisc media. Verbatim employs special manufacturing and testing control procedures that assures each MediDisc DVD-R performs at the highest standard.