• Lower Cost of Ownership: 84% less per GB than Magneto Optical.
  
• Higher Capacities: 30 GB of capacity on a single disk. Minimizes the number of disks required to store permanent data.
  
• Permanence: Phase Change Write Once prevents customers from overwriting data or altering files, making UDO ideal for customers who need to comply with international regulatory requirements.
  
• Higher Performance: 33% faster file access over it's predecessor, Magneto Optical (MO)
  
• Durable and Secure: in excess of 50 years archival life
  
• Standard: 5.25" ISO standards
  

Ultra Density Optical technology, commonly referred to as UDO, is the ideal successor to Magneto Optical (MO) archival storage because it adheres to the 5.25" ISO standard form factor. UDO offers customers more than three times the capacity of MO, with 33% faster file access, 8 MB/sec read transfer rates and a lower longer term cost of ownership; roughly 84% per GB less than MO. UDO will deliver the highest level of data integrity and trustworthiness with phase change write once recording and is considered the new 30 GB standard for professional optical storage; ideal for customers who must meet international, commercial and governmental archival regulations.
Phase Change Technology utilizes the heat from a blue laser to write data on the recording surface of optical media. The laser records data marks by altering the reflective quality of the recording surface. This is done by changing the physical state of the media's recording layer from a crystalline to an amorphous state, which produces bright to dark marks on the media. The same laser, set at a lower intensity, is then used to read the media. UDO Write Once optical technology prevents data from being overwritten or altered. UDO uses a non-contact recording to provide robust and reliable performance and is insensitive to exposure to magnetic fields.
UDO has a solid three generation road map with capacities reaching 120 GB on a single disk. With each new generation, the cost of trustworthy archival storage will continue to provide cost effective professional archive storage.