Iomega Rev

The Rev (also stylized as REV) was a removable hard disk data format produced by Iomega from 2004 to 2010.

In many ways a successor to the earlier Jaz, the Rev was marketed as a replacement of tape drive technology for enterprise data backup with claims of higher reliability, greater speed, and random access capability.

Why it was Crummy

 * The drives suffered from reliability issues and high failure rates of the disk mechanism and, in the external versions, the power supply units.

Why it had Failed

 * 1) Rev disks and drives were expensive.
 * 2) Rev faced serious competition from 2.5 inch USB hard drives, which are less expensive, more reliable, smaller, and higher capacity.

Redeeming Qualities

 * 1) Performance is on par with a standard hard drive
 * 2) The disks can be removed and stored off-site as advertised.