Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Information Forms (hierarchy name)
5. information forms (objects)
6. information artifacts
7. [information artifacts by physical form]
8. recordings
9. video recordings (physical artifacts)

Anotations

Scope note:

Optical disks on which still images, moving images or sound are recorded in an analog format. The images can be displayed on a video monitor, such as a television attached to a videodisc player, which may be controlled by a computer. Prior to the introduction of compact disks, which also use a laser to read the data, videodiscs were sometimes referred to as "laser disks." For the digital versatile disc format specifically, use "DVDs."