This article is from the storage FAQ part1, by Rodney D. Van Meter with numerous contributions by others.
Sony developed transport designed initially for home video market. Exabyte has U.S. rights with Kubota qualifying as a second source when needed. EXB 8200 model holds 2.3 Gigabytes per tape at 220 KB/sec EXB 8500 model holds 5 Gigabytes per tape at 500 KB/sec Search speeds of the 8200 is dismal, but is significantly improved in later models. Compression and half-height (standard is full-height 5.25-inch) features are also available. See http://www.exabyte.com for more info.