CD Glass Mastering & DVD Glass Mastering
Glass mastering is the first process we use at VDC Group when we convert the client’s pre-mastered disc or tape to glass master, from which all relevant stampers are then created. CD or DVD, we can convert either disc to a master, and can do this to meet any sort of demand.
The Process of Glass Mastering
During the manufacturing process, the files from the client’s master are uploaded to our own mastering server network. The following stages are then required to complete the master:
- Files are exposed (recorded) on a glass master substrate using a laser beam
- The recorded or exposed glass master is developed and metallised, forming physical structures representing original data. These structures are called ‘Pits’
- The metallised glass master is electroformed into a Nickel disc called a ‘Father Stamper’
- If multiple stampers are required, a further process called ‘Family Making’ is necessary, where a “Mother shell” is produced from the Father Stamper. Son Stampers may then be produced from the Mother Stamper
- All stampers are then polished and punched to the required finish and size
- Physical and electronic tests are conducted to ascertain quality
- A quality-controlled stamper is handed over to our pressing plant to mass produce optical CD discs
