DVD Duplication

DVD Duplication By Pressing

Pressing of the Most Popular Types of DVD Discs (outer diameter of 120 mm and 80mm / 3 inch).

Metal coating

DVD 5 and 8 cm / 3 inch DVD (mini) 1,34 GB: only one layer is metallized, using aluminium
DVD 9 and 8 cm / 3 inch DVD (mini) 2,41 GB: inner layer – metallized, using aluminium outer layer – metallized, using silicon (semi-transparent)
DVD 10 and 8 cm / 3 inch DVD (mini) 2,68 GB: both layers metallized, using alluminium

Quality

Quality of each DVD is checked in the production process using a multistage checking procedure:

Checking the extent of metallizing
Checking the “bonding” (whether the adhesive is spread evenly)
Checking the mouldings (both Layer 0 and Layer 1)

Furthermore, all analogue and digital parameters of the DVD are measured and checked.

DVD types

All DVD types listed comprise two substrates that have to be bonded together:

DVD TYPE	CAPACITY	RECORDING LAYER	READING	DISC TYPE
DVD 5	4,7 GB	outer layer	from one side	single-sided, single-layer
DVD 9	8,5 GB	both layers	from one side	single-sided, dual-layer
DVD 10	9,4 GB	both layers	from both sides	single-sided, single-layer

8 cm (3 inch) mini DVD types

DVD TYPE	CAPACITY	RECORDING LAYER	READING	DISC TYPE
mini DVD	1,34 GB	outer layer	from one side	single-sided, single-layer
mini DVD	2,41 GB	both layers	from one side	single-sided, dual-layer
mini DVD	2,68 GB (1,34+1,34)	both layers	from both sides	single-sided, single-layer

DVD Formats

At first glance, DVD disc looks the same as CD. It has the same diameter and thickness and uses the same non-contact method of reading data by laser beam. DVD recording capacity is several times higher than the CD’s 0.65 GB.

There are several DVD formats:

DVD – Video

MPEG-2 video, up to 8 audio language versions and up to 32 subtitle versions plus 9 various camera angles available. DVD -Video disc also features a navigation system for easy access to the particular information stored on the disc and to other functions.

DVD – ROM

uses the popular UDF/ISO (Universal Data Format /Industrial Standard Organisation) format readable under all PC operating systems that support UDF.

DVD – Audio

In addition to the large capacity provided by the DVD format, DVD – Audio’s benefits include the possibility of storing a digital sound recording with a higher sampling frequency (48 kHz, 96 kHz or 192 kHz) and a greater data resolution (up to 24 bits for DVD – Audio instead of Audio CD’s 16 bits).

Hybrid DVD

Hybrid DVD is a combination of two or more formats.

The main benefits of the DVD technology are

Superior image available in broadcast quality plus surround sound
Large capacity of the disc, allowing to store more than two hours of video on a DVD 5 disc
Interactivity, providing perfect (fast and easy) navigation within DVD title’s structure, i.e. accurate access to any specific sequence of this huge volume of information stored on the disc or to a specified section of the video programme within one-second accuracy, as well as the availability of the repeat mode and the forward/reverse and fast/slow step motion
Disc’s capability of holding up to 8 language versions, which can be arbitrarily switched between while viewing the title
Making use of up to more 32 text layers for subtitles in various languages, which the user can also change arbitrarily
A choice of up to 9 viewing angles accessible while watching the title
Up to 8-level security preventing access to selected information
Support for widescreen picture and the 16:9 aspect ratio (e.g. one side of a double-sided DVD 10 disc may contain the 4:3 presentation while the 16:9 presentation may be stored on the other side)
Discs indestructible by being played, resistant to magnetic field and easy to store
DVD format’s versatility plus features encouraging its use for a wide range of human activities