HP UDO 30GB Write Once and Rewritable disks are the new standard for professional optical storage. Based on ultra density, blue laser technology; it is the recognized successor to 5.25" Magneto Optical (MO) storage; meeting international, commercial and governmental archival regulations. UDO delivers the highest level of data integrity and trustworthiness with exceptional Total Cost of Ownership (TCO). UDO media stores up to three times the data at 84% less than the cost of MO. UDO is ideal for medical, graphic, government, financial and pharmaceutical industries because it meets the key archival attributes for maximum authenticity and trustworthiness, long retention periods, high capacities and scalability with timely access and low long-term cost of ownership.