Duplication vs. Replication for DVD and BD

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When creating DVDs or BDs, you have two choices to manufacturer the optical discs. If you’re dealing with small quantities, you can use the optical burner or disc drive with your computer. These discs are easy to make, but may not be as compatible in all players.
If you need to produce discs in larger quantities, the use of replication is preferred. In this case a master disc image is created (often called the glass master). Discs can then be created using specialized hardware that can create the discs much faster and with greater accuracy to prevent errors. This process is typically used for orders above 500 discs.

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