In CD and DVD production, stamper is an intermediate product on which data for pre-recorded and blank disks is stored. In light of the fact that storage of such data is a very delicate process, state-of-the-art technology is needed in the production of stampers. There are only 10 companies in the world which produce stampers and MEdisk is one of them.
As the name suggests stampers act like a stamp in manufacturing optical disks. In the production of stampers, the main material, that is polycarbonate, is pressed as data – movies, software, games, etc – is stored in the form of 190 binary content on a piece of nickel. The precision of the process is within nanometers.
A replicated copy of the master disk, which is to serve as the mold, is then produced. The contents of the stamper produced in the process are identical to those of the master file. In other words, whether or not a CD or DVD is blank or prerecorded depends on the stamper. Naturally, the stampers of blank CDs and DVDs contain no data, whereas the stampers of prerecorded disks contain data.
Production of a stamper takes at least four hours to complete. In the past when Iran was not in possession of the technology to build stampers, files would have to be mailed to a country with such technology for production of stampers. When orders were placed with regional countries such as Turkey and the UAE and production got under way on the same day the files would arrive there, the process would take at least four working days. In light of the fact that stampers are very subtle and they may be damaged in transport or during production, the whole process might have to be repeated and that would prolong the production process.
To make that problem a thing of the past and meet the local need for stampers, Reezmouj System Co. launched a stamper production line at MEdisk in September 2006. A second line came on stream in 2010. As the biggest producer of stamper in the world, the company now has the capacity to make up to 500 stampers a day. In addition to meeting the local need, Reezmouj System Co. is now selling its products to some Middle Eastern countries including the UAE which were once exporters of stampers.
Fast pace, high quality and minimum waste are some of the advantages associated with this production process. Besides, the stampers could be reserved for future productions.
The production line which operates around the clock stands ready to produce the following stampers: