Kleine Riesen

The DVD is the giant amongst the digital data carriers. Continual new developments offer increasing capacities, whilst the media measurements remain unchanged. For voluminous data quantities, you will find in our DVD production the correct solution for almost all areas of deployment.

Contact person

Edgar Emker

Edgar Emker

 
Tel.: +49 5441 977-201
Fax: +49 5441 977-222
Write an e-mail to this person
Store the contact data of this person locally

DVD

When you need cinema-quality sound and image, the solution is the DVD.

Its high-capacity memory makes it the truly versatile choice.

If you want to offer your customers extra features, this is the format to choose. Our state-of-the-art technology meets the most exacting requirements when it comes to duplication, processing and packaging. We will be pleased to show you the many features currently offered by the DVD format.

  • DVD 5
  • DVD 9
  • DVD 10

DVD stands for Digital Versatile Disc,

and the format really does live up to its name. A DVD basically consists of two CDs, each one of which is 0.6 mm. thick. In a further production stage, these two CDs are stuck together using a special bonding process. Once the bonding process is finished, the 1.2 mm-thick DVD has the same appearance as a normal CD. Before production proper can begin, a glass master or “stamper” disk has to be made. Transfer at the mastering stage requires a DLT* (further details below), onto which a DDP conforming to specification 2 is recorded. These days, it is also possible to supply a pre-master in the form of a DVD-R* (further details below). The glass master is created using a process similar to audio mastering. Once the master transfer has taken place and the injection moulding tools and electroplating process have been set up, production can begin.

There are various DVD formats:

DVD 5

DVD 5 consists of one substrate with a data layer and another (i.e. a blank substrate) without. These DVDs are marketed as “single-sided, single-layer” disks. They have a storage capacity of 4.7 GB, i.e. about seven times that of a conventional CD.

DVD 9

DVD 9 technology is based on the concept of “single-sided, double-layer”. In this version, a semi-transparent data layer is combined with an opaque, reflective one. The laser can be focused either on the semi-transparent layer or on the reflective one. The first half of the DVD is coated with gold or silicon, while the second half is coated with aluminium in the normal way. If a disk of this type is placed in a DVD player with the first side facing down, the laser can focus either on the semi-transparent gold/silicon layer or the reflective layer. This design offers almost twice the memory capacity of a DVD 5 disk. Both layers are reproduced without having to turn over the DVD.

DVD 10

DVD 10 disks are relatively simple to make. The process involves making the DVD in two halves, and then bonding them together. These disks are described as “double-sided, single-layer”. Both DVDs are coated with aluminium, making both sides reflective. When one side has finished playing, the disk must be turned over to continue. This type of DVD has exactly twice the capacity of a DVD 5 disk.

DVD 14

DVD 14 is a standard that has only recently begun to establish itself. DVD 14 technology is based on the concept of “double-sided, one dual-layer side, one single-layer side”. This type of DVD has a memory capacity of 13.2 GB. Series production using this type of DVD is currently not possible. The problem with series production arises from the fact that an additional data layer has to be added to the semi-transparent face. If this should become possible in the near future, the first side of the DVD will have the capacity of a DVD 9 and the other will have the capacity of a DVD 5, giving the total expressed in DVD 14.

DVD 18

A DVD 18 basically consists of two DVD 9 disks. The technology is based on the concept of “double-sided, double-layer”. This format offers twice the memory capacity of a DVD 9 disk, although this type of disk also has to be turned over to play the other side. Players are currently being marketed with two lasers, designed for continuous playing of both sides of this type of disk.

*DLT stands for “Digital Linear Tape”

In the DLT recording process, the data are written to tracks arranged in parallel to the edge of the tape, which is in turn half an inch wide and up to 560 metres long. Thanks to its high capacity and fast data-transfer rates, DLT has established itself as the standard technology for DVD production.

Technical details:

Capacity of up to 80 GB per tape

Data transfer at up to 6 MB per second

DLT drive types:

DLT 4000 - 20-40*** GB
DLT 7000 - 35-70*** GB
DLT 8000 - 70-80*** GB
*** using 2:1 data compression

These drives are backward-compatible for reading and writing, i.e. a tape recorded using DLT 4000 can be read by a DLT 8000 drive. For further information and answers to queries, please call our hotline on +49 (0)5441/977-175.

**DVD-R stands for Digital Versatile Disc-Recordable

A DVD-R disk drive writes data directly to a DVD-R disk, in a similar way to the disk-burning process used with audio-CD or CD-ROM disks. This method offers the advantage of being able to check and test the DVD thoroughly before it is pressed. At the mastering stage, the DVD-R image is read and transferred, as with audio-CDs and CD ROM disks, to the glass master.

DVD 9 production also allows disks to be supplied in DVD-R DL and/or DVD+R DL format.

It is also possible to use the DVD 9 production process to supply the corresponding layering image on a DVD-R or DVD+R.