The Difference - CD Duplication & Replication

By Frank McNow


Once you understand the differences between CD replication and CD duplication, you will immediately know which process you need. When you are having your project professionally created, your final decision will depend on three concepts: how many new CDs you need to make, how long you are willing to wait for them, and what level of sound quality you require.

If you want to make a lot of a particular CD at one time, then CD replication will offer you a high-quality process. This method will be done by a professional manufacturing facility. With this technique, a mold is made for each run of discs. A high volume of CDs are produced at one time by an injection molding process using the mold. This technique is recommended for quantities over 1,000 discs.

A CD master that is made for use in replication is unique. The original music is put through special recording equipment. This equipment places positive image of the music onto the surface of the disc, which is typically created in gold, silver or glass. Once the music is imprinted on the surface of choice, copies are created through special stamping equipment that makes negative images of the CDs off the positive version. Injection molds are then created to make the positive end results.

CD replication turns out an extremely good quality of music. Injection molds can make a high volume of duplicates that are also covered with an aluminum film and some lacquer for protection. These also go through a hardening process under an UV light before they are ready to use.

The CD duplication process is less complicated, and produces a single copy of a disc at a time. Normally, it is used for creating fewer than 1,000 duplicates. In this process, a computerized disc drive is used to transfer the sounds off an original CD. This recording is then transferred, or "burned", onto another CD to create a perfect replica.

You choose your CDs from three main types of them for this process. Stereo systems and computers that are older are compatible the CD-Rs. The newer DVD players, car and home stereos, and computers will play the CD+Rs and CD-Rs. Select which one you need by the targeted audience. Now, there is also the rewritable version of blank CDs called CD-RWs. These can be recorded, erased, and re-recorded if necessary similar to the old VHS tapes.

Occasionally, the duplication process will uncover a blank CD that was not properly created. These CDs will fail to record information at all on them. They will still be registered as blank when finished.

The process you select will determine the type of end product you will receive. Even though the CD replication process produces a higher-quality product, the cost is often too expensive. The fact that the CD duplication process is not as complex is great, but the quality is not quite as high as the replication process gives you. Think about this information as you try to select which technique to use to make the CDs you need. Plan ahead whichever process you choose.




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