* A thin magnetic film disk that is used as an older method for storing data. [1]
* Small removable disks, also known as diskettes, that come in two sizes, 3.5” and 5.25”. The amount of data that can be stored on a diskette depends on the size, and can be 360 kilobytes to 1.4 megabytes. [2]
* An increasingly rare storage medium consisting of a thin magnetic film disk housed in a protective sleeve. [3]

[1] Vinson & Elkins LLP Practice Support, EDD Glossary.
[2] Legal Electronic Document Institute, Basic Principles of Automated Litigation Support (2005).
[3] Kroll Ontrack, Glossary of Terms, http://www.krollontrack.com/glossaryterms

Attributions
- EDRM (http://edrm.net)