Memorex MVDP1072 manual Preface, Brief Introduction to DVD

PREFACE

Brief Introduction to DVD

DVD is well known for its extraordinarily large capacity and outstanding audio-video quality. Its capacity is as high as 4.7-17 GB (approximately 7-26 times the CD capacity).With 500-line horizontal resolution for pictures and Dolby Digital 5.1 Channel surround sound, it brings a new era to the household AV products.

Comparison Between DVD and Other Discs

			DVD			LD	SVCD	VCD	CD
Recording	Digital/MPEG2					Analog	Digital/MPEG2	Digital/MPEG1	Digital
Method
	Single-		Single-	Double-	Double-
Capacity	sided		sided	sided	sided		650MB	650MB	650MB
	1 layer		2 layers	1 layer	2 layers
	4.7G		8.5G	9.4G	17G
Playback time	133min.		242min.	266min.	484min.	1 side 60min.	45min.	74min.	74min.
						2 sides 120min.
Disc Diameter			12CM/8CM			30CM/20CM	12CM/8CM	12CM/8CM	12CM/8CM
Horizontal		500 lines or more				430 lines or	350 lines or	250 lines or
Resolution						more	more	more
Aspect Ratio			Multiple			One
Subtitle			32 types			Max. 16 types
Audio	Dolby Digital/Linear PCM					Linear PCM			Linear PCM
						FM modulation
Sound Quality	48KHz,96KHz/16,20,24bit					44.1KHz/16bit		44.1KHz	44.1KHz/16bit

Function Introduction

Multiple languages and subtitles

DVD discs can support as many as 8 dubbing languages and 32 subtitle languages. Multiple angles

DVD discs may support as many as 9 camera angles. Multiple story plots

Some discs support user selection of various plot choices that effect the beginning, development or end of the story all on the same disc.

Multiple aspect ratios

Multiple aspect ratios support various TV screens.

		TV Screen
Disc Pictures		4:3		16:9
	Pan-Scan		Letterbox
4:3

16:9

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