You may not think there is a difference between DVD duplication and DVD replication. After all , each process produces the same result - a copy of the first disc. You might be surprised at the differences between the processes, though. The quality of one disc compared with the other one's clear when they are used for mass production.
DVD duplication is just that-duplicating a program, film or artistic performance onto another DVD to share it with someone or to market it commercially. Somebody with a computer and a DVD burner can simply copy a DVD to a blank disc and produce an OK copy. However , this isn't routinely done at home for large quantities because it is terribly time intensive.
Directors, home businesses and video production firms have all found duplicating tiny quantities of DVDs to be an effective way of promoting themselves. Copying a DVD of their work is invaluable to their careers and can be done on their home PC. Most large run DVD duplicates are mass produced on a larger scale than the average joe can manage. It involves a few copies of the DVD, each copy attached to a bank of burners piled high with blank DVDs so that loads of copies can be made in minutes. The data from the DVD is duplicated by these burners so that an OK copy is produced.
However, DVD duplication isn't the same as DVD replication. Whereas duplication merely copies the information from an original disc, replication involves more steps to insure the integrity of the final product. The first thing done in the replication process is called pre-mastering ; the master disc is meticulously checked to make certain that none of the information is corrupted. When it is determined the master is perfect, a glass master is created so a stamper can be developed.
Stamping involves a mould for the DVD discs. An injection molding machine uses heated polycarbonate that is injected then momentarily cooled before the info from the glass master is etched onto it. Because each disc is made of the same glass master that remains uncorrupted, a replicated DVD is often of higher quality than a duplicated DVD.
Replication also includes adding protecting layers to each disc to preserve the data. Duplication lays down the info on the disc without further physical protection, leaving it more susceptible to scratches and pits.
The average person will happily enjoy a duplicated DVD and not spot many noticeable differences. The only time a duplicated DVD can be tricky is if the disc is watched in a very old standalone DVD player. In a number of cases, these DVDs will not play. These issues aside, replicated and replicated DVDs are frequently indistinguishable and the DVD packaging available for both is the same.
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