If you're not familiar with QuickTime and QuickTimeVR, it may be helpful to read through these basic concepts. The QuickTime Media Layer "QTML" can be separated into at least four categories:

1) Panorama
2) Object
3) Movie
4) Sound / Audio

1) Panorama - Essentially a type of QuickTime movie. A panorama is a 360 degree view of a scene. Within a panorama movie, the cursor will become  And when moving about the scene will become 
Such a scene may contain 'hotspots' indicated by a change in the cursor from  to 
Hotspots, when clicked on, may transport you to additional media content, or perform an action of the artists intent. Additionally, you can zoom in and zoom out of a panorama with the [shift] and [control] keys respectively.

Panorama specific terms: Nodes - a node is a single scene; a single 360 degree view. Nodes may be linked together via hotspots so that, if each node is a partial view of a larger scene (each one room in a house) clicking through each node can give the sense of traveling around inside the house from room to room. NOTE: nodes need not be linked to other or similar nodes, they can be linked to any media content, even another page or URL. See image below for QTVR panorama controls.

2) Object - A type of QuickTime Movie. An object movie is a view of an object from many sides. When the artist provides enough angles of view, an object may give the sense of holding the object in your hand and being able to view it from all sides. When viewing an object movie, the cursor will change to  allowing you to 'grab' the object  and rotate it around. The controls shown above also may apply to a QTVR Object, especialy the Drag Zoomed, Show hotspot, and Hotspot info controls.

3) Movie - A QuickTime movie. Simple put, digital video.
Usually indicated by the presence of a control bar, See image below, which allows you to start, stop, fast forward, rewind, and control the sound of the movie.

NOTE: The author may reduce the control bar to just the start and stop indicator  or eliminate it entirely for design esthetics and have the sound start automaticly.

Movie specific terms: Frame rate - QuickTime movies, as do most dynamic imagery, create the illusion of motion by quickly displaying a series of slightly different images or 'frames' sequentially . The more frames per second, the higher the frame rate. Traditional video displays 30 frames per second (fps) to create fluid motion. However, unmodified desktop computers currently have difficulty playing 30 fps at any substantial window size. Therefore, most QuickTime movies use a lesser frame rate, typically, 15 fps, or even 10 fps. Lesser frame rates result in less fluidity, and at extremely low frame rates (8fps - 6fps) can result in a jittery visual effect.

4) Audio - Essentially, a movie without any picture. Such a movie may be digital audio, or MIDI (Musical Instrument Digital Interface) that generates synthesized musical sound via a plug-in, system extension, audio card or external MIDI tone module. This pictureless movie is often indicated by and can be controlled by a control bar, the same as a QuickTime movie.

Sound specific terms: Sample rate and bit resolution - Digital sound is a 'sampling' of a sound. Higher sample rates and bit resolution yield better quality sound; the more times a sound is 'sampled' in a second the more complete the representation of the original sound.