FAQ

Duplication and pressing are two different manufacturing processes. One is suitable for short runs and can be done within 24 hours; the other is suitable for quantities in excess of 200 pieces and allows us to offer an extremely low unit price.

Pressing consists of making a glass master from an original media (or master) which in turn allows a stamper to be produced. This is an industrial mould made of nickel used in high-speed plastic injection. 
Liquid polycarbonate is then injected at high pressure into an industrial press fitted with the stamper to obtain a transparent disc (with a thickness of 1.2 mm) which already includes the master's binary coding. 
The injection cycle takes less than three seconds.
All that remains to be done is to cover the CD with a coating of aluminum which produces a mirror effect (to reflect back the laser beam), over which is applied a film of varnish (to protect against oxidation) and to print your visual (label) by screen printing or offset.

In the case of a DVD, two 0.6 mm discs are produced. These are then glued together using a polymer resin. 
In the case of a DVD5 (4.7GB.), only one of the discs contains the binary coding. The other is used only as a spacer to obtain the desired 1.2 mm thickness.

This pressing (or replication) technique is expensive for short runs because the creation of the glass master and stamper is complex. The injection phase, on the other hand, is relatively cheap, which makes the process perfect for runs above 200 units.

Duplication or burning is advisable for short runs and allows delivery of the finished product in under 24 hours, depending on the particular case. The original source is copied on to a robot which burns blank CD-Rs or DVD-Rs using a red or orange frequency laser. The CD-R or DVD-R media therefore already exist. They are then printed, using an ink-jet printer or thermal re-transfer.

Attention: DVD-Rs are not compatible with all home players.

The application of a layer of aluminum on a CD/DVD serves to reflect the light from the laser beam when reading a disc. The aluminum is covered with a fine layer of varnish to protect it against oxidation which would damage its mirror effect properties.

A hybrid CD-ROM is a CD-ROM that is readable by both a PC and a MAC. This requires special formatting of the blank disc during burning. The data files or programs must be designed so that they are also compatible and executable on both types of platform.

There are two types of hybrid CD-ROM, HFS/ISO:

  • Those where the information occurs once on the CD. The files and programs are therefore perfectly compatible with both MAC and PC.
  • Those whose capacity is divided into two separate parts, one compatible with MAC and the other with PC.

A mixed mode CD is an audio CD whose final track contains a video file.
On a hi-fi, only the audio tracks are readable.
On a computer, it is possible to listen to the music and/or watch the video clip (video file).

CMYK is the process used for offset printing (c: cyan / m: magenta / y: yellow / k: black). It is called CMJN in French-speaking countries. When producing a CD/DVD, graphic source files must be prepared using this system, and not RGB which is the color display mode used by your screen.

If the design to be printed on the surface of the CD/DVD is half-tone, or if it is a photograph, a picture or has color graduations, we recommend offset printing. When printing solids (printing area 100% the same color) as well as for Pantone colors (bold tones and pure colors not reproducible by 4-colour process (CMYK)), we usually print the visual on the CD/DVD by screen printing. 
The definition achieved using offset printing is superior to that achieved by screen printing (60 or 80 lines per centimeter as against 54).
With screen printing the colors are more saturated, while in offset colors blend better but they are not so bright.

Thermal re-transfer is a digital printing procedure used in the printing of small quantities. For this we use rollers and a heat process to lay down each color in succession on the surface of the CD/DVD. This procedure is particularly appropriate for short runs and short delivery times (under 24 hours). 

We accept PDF files for checking purposes but never as a production file. In actual fact, we need the source files, to be able to guarantee you the best printing quality. This way, we can check and, if need be, correct errors at a colorimetric level, picture definition and also the format (functionality) of your documents.

The 3 mm borders are necessary for all printing on paper (booklets, packaging, pockets). They allow us to ensure perfect rendition when cutting your documents to size. Therefore we cannot accept files without these 3 mm borders because it is difficult, even often impossible to modify them to fit our technical specifications.

We ask you to send us your master in a padded envelope. In order to ensure an optimum burn quality, we ask you to burn your audio master at 2X, your CD-ROM master at 16X and your DVD master at 8X. The master that you supply to us must correspond absolutely bit-for-bit with the finished CD/DVD that you want us to supply back to you. 
We advise you to check every detail of the content and operation of your master by reading it on different machines of varying generations, different configurations and where possible, different types (read a video DVD on a computer and a dedicated player, and the same for an audio CD. We recommend that you make a duplicate of the master that you send us and that you look after it very carefully.
We ask you to supply us with a master free of finger marks, scratches, dust etc., burned on a “top of the range” machine (ask us for advice if you need to).

CD-RW and DVD+/-RW formats are not usable as input media for duplicating and pressing CDs/DVDs.

We use standard DTP programs, i.e. all the software in the Adobe Creative Suite (InDesign, Illustrator, Photoshop) as well as Quark Xpress DTP software.

If you do not own such software, or you want us to advise or help you in the preparation of your graphics files, please contact us during company opening hours on 021 695 25 85. 

Industrial pressing in 6-8 working days remains the manufacturing process best suited to large runs. Generally speaking, you should also allow two to five additional days for the production of packaging such as Digipacks, Digifiles, DVDigipacks etc. Particular jobs requiring the production of “custom” packaging or manual insertion, e.g. the gluing of pockets into brochures, require scheduling and special delivery times, to be discussed during the initial job specification process. For small quantities (generally less than 200 pieces) thermal re-transfer and “express” burning provide a 24-hour duplication service. Also, standard packaging and even certain types of digitally produced personalized printing can be provided by our Express Copy Centre. Do not hesitate to contact us. You will always receive the best possible service with a view to giving you the very best delivery time.

You cannot rely on colors displayed on a traditional computer screen because each screen is calibrated differently and so displays color shades differently from one screen to the next, even if they are both of the same make and model. Only calibrated screens that are part of a completely calibrated system (screens, proofing systems, offset presses) within the same printing site can be used in this way.

In order to ensure optimum color rendition, we suggest that you produce calibrated Epson output (ink jet) or Cromalins (proofing system).

A solid black, also called a deep black is an area printed black over a base of the other colors in the four-color process (cyan, magenta, yellow). Every company has its own way of creating this black depending on its working methods and the machines it uses. For us, a solid black is made up of the following values: 100% black / 50% cyan / 38% magenta / 40% yellow. You can use these values in DTP software, to tell us that you want to obtain a deep black.

We need the source files, to be able to guarantee you the best printing quality. In this way, we can check and, if need be, correct errors at a colorimetric level, picture definition, and also the format (functionality) of your documents. 

Digital files can be sent to us, either on a CD/DVD or via our FTP server or to the email addresses of our PAO services pao@cdmediacting.ch.

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  • SWISSADDICT SARL
    RUE DES JORDILS 40
    CP 202 CH-1025 ST-SULPICE

  • Phone: +41 21 695 25 85
    Fax: +41 21 695 25 86
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