AC-3	Dolby Digital Surround Sound (5.1 Channels).  See Dolby AC-3
	Anniversary	Anniversary Edition.
	B&W	Presented in Black & White.
	Box Set	Multiple features packaged in one set.
	CAV	One disc revolution of a laserdisc equals one video frame, allowing for digital effects like freeze frame, slow motion and special playback effects on all Laser Disc Players.  A CAV disc has only 30-minutes per side. Standard Play.
	Collector's Edition	Film highlights and various other features.
	Component Video	The output of a video device, such as a DVD or a DTV set-top-box, to the input of a Video Projector or Monitor. An encoded video signal which separates the luminance (brightness) and chrominance (colour) signals. The 3 component signals have been translated into luminance (Y) and two colour difference signals (Y-R, Y-B), each on a separate wire.
	Composite Video	An analogue, encoded video signal  that includes vertical and horizontal synchronising information. Having the luminance (brightness) and chrominance (colour) signals encoded together, a single connection from a TV to a VHS video machine via an RCA socket.
	Chapter Stop	In both CAV and CLV laserdisc formats, a section of the program can be divided into areas known as chapters, very similar to the "chapters" in a book. This feature organizes the important plot points or action sequences of a film so that you view your favorite sections with the simple touch of a button rather than fast-forwarding or rewinding in a hunt-and-peck method. It also serves to separate the supplemental sections of a disc for easy viewing. If you press the SKIP button on your remote, the program will be automatically fast forwarded to beginning of the next Chapter and play will resume. It is also possible to skip directly to any desired chapter on the program by using the Direct Search feature of your player, normally by entering the number of the Chapter on the remote controls keypad and then by pressing the Chapter/Time button.
	CLV	One hour per side of a laserdisc, sacrificing special playback features on some low-end players.  No special digital effects available unless a higher end laser disc player is being used. 60-minutes per side. Extended Play.
	Director's Cut	Extra footage not originally contained in the original or theatrical release, re-edited as the director originally intended.
	Dolby Digital	Most DVD discs contain Dolby Digital soundtracks, but the soundtrack can be Mono, Dual Mono, Stereo or Dolby Surround.
	Dolby Digital 5.1	The disc features a discrete 5.1 channel soundtrack encoded to an AC-3 Bitstream.  When played through an AC-3 amplifier audio will be heard from all five speakers and a subwoofer, the (.1 channel).
	DTS	Digital Theatre Sound.  The disc contains a discrete five channel  (5.1) soundtrack and must be played through DTS capable equipment. See DTS
	DVD	Digital Versatile Disc, originally called Digital Video Disc.
	Dubbed	Dialogue recorded in other than the language spoken in the original film.
	Enhanced 16:9	The image is enhanced for widescreen televisions.  See Enhanced 16:9
	Jewel Case	The standard case used for CDs made of plastic.
	Karaoke	Karaoke sing-along music video.
	Keep Case	This is a deluxe case for keeping your DVD's in.  It is slightly taller than a Jewel Case but the same width.
	Laserdisc	Analogue Optical Disc.
	LTBX or Widescreen	This program is presented in a "letterboxed" widescreen format preserving the original theatrical aspect ratio, with picture reduced to fit its entire width on the screen.  This is the preferred format for viewing widescreen, with black bars on the top and bottom.  See  Film to Tape
	Limited Edition	A title released in limited quantities.  Sometimes has extra features not available in the original or theatrical release.
	Lock	Parental lockout.  Allows for the selection of the rating you would like to watch according to the rating selected on the DVD player.  See Video Ratings Guide
	Mono	The disc contains a mono sound track only.
	P&S or Full Screen	Full screen video using the entire TV screen, usually a manipulated widescreen movie with Panning and Scanning to stay on the focal point of the movie.  See Film To Tape
	PCM	The disc contains an uncompressed digital stereo soundtrack.
	Premier Collection	Bonus Features: Documentary, Behind the Scenes, Audio Commentaries.
	Remastered	Remastering means a new film print is used to make the Digital Video Master.  See  Film to Tape
	Restoration	Movies undergo a restoration process when negatives and prints have deteriorated over time.  See Film to Tape
	Snapper Case	Warner Bros designed case which is essentially made from cardboard.  It has a strip of plastic clips over the end of the flap which makes a "snapping" sound when being closed.
	Special Edition	Special Features, Audio commentaries, Alternate Ending, Extra footage not originally contained in the original or theatrical release.  Director's running commentary, film scores without dialogue and various other features use one of a disc's four discrete audio tracks.
	Subtitled	English subtitles in a foreign language film.
	Surround Sound	Audio intended to heighten realism by emanating from behind the viewer.  Separate rear speakers required.  See Dolby
	S-VIDEO	Separated Video, an encoded video signal which separates the luminance (brightness) and chrominance (colour) signals,  it improves the picture quality when connecting televisions and video projectors to any high quality video source such as Digital Broadcast, Satellite,  D-VHS and DVD's.
	THX	THX is a supervision process during mastering, giving superior sound and picture quality.  THX is a Division of Lucasfilm, Ltd.  See THX and THX Mastering