With the drops in hard drive prices, the attractions of magneto-optical storage are quickly fading. In addition, MO disks can be placed in a jukebox that can hold over a hundred disks at a time. MO technology is slower and more expensive than large hard drives. As with magnetic drives, the information is written on the a spinning platter, which can be erased or damaged. This would mean a restoration from backup would be needed.
Most people are familiar with CDs from music and data disks available at many retail outlets.
CDs offer a safe and reliable media that can provide long-term storage for images, in some cases up to 100 years. More can also be stored in jukeboxes that can hold 500 disks at a time. Furthermore, CDs do not require any specialized hardware or software to retrieval information. CD Jukeboxes and CD towers make it more convenient to store large number of documents on large numbers of CDs. DVDs Visually similar CDs, these disks offer the same storage capacity of a MO disk without using moving parts in the media or requiring special software for decoding.