By Frank Little


When you know what the difference is between the CD duplication or replication processes, you know which one will serve your needs the best. You will need to consider three main things with having your project created professionally; the number of CDs you want produced, the time frame you need them in, and the look of the discs.

When you need to make a lot of duplicate of one CD in one production run, CD replication is ideal for turning out high quality copies. This procedure should be performed with the help of professional-quality devices, to turn out a top-quality CD master. With this method, molds are made of original disc. The professionals, to make numerous CDs in one run, then use these molds. This method is typically only used for runs of 1,000 discs or more.

The master CD created for this process is very special. The original sound is introduced to a recording system. This system imprints a positive version of the sound onto a master that is normally made from glass and then transferred to metal. Once these malleable surfaces are imprinted with the recording, copies are made of them with a stamping system to produce negatives. These negatives then have injection molds made of them to create positives again.

CD Replication produces a very high quality of sound. The injection molds produce duplicates in high numbers, which are then coated with a film of aluminum and a protective lacquer surface. Once these have been hardened with an ultraviolet light source, they are normally printed and your high quality duplicates are ready for use.

Now, for a less complex procedure you may be able to use the CD duplication technique if you need less than three to five hundred copies. With this technique, a disc drive in a computer transfers the desired sound from the original CD. The recorded sound then is burned (transferred) onto a special type of CD to make an exact replica.

You can select three kinds of CD blanks with this process. Older styles of stereo systems and computers can play the CD-R discs. The more recent car and home stereos, DVD players and computers will read either of the CD+Rs or the CD-Rs. Select the plus or minus according to your intended target group. CD-RWs just are discs that can be recorded on more than once. The material placed on it can be erased. This makes the disc ready to be used once again.

I don't think the process of CD duplication produces as high quality of sound as the CD replication technique. However, there is such a slight difference that it takes a well-trained ear to notice. Sometimes during the process a blank CD will show up that was not made correctly. CDs like this are not useable for recording. They still show blank after the process has been performed. You need to insist that the CDs be tested to make sure they recorded the desired material.

Which of these processes you choose will make a slight difference in your final product. While CD replication does produce a slightly better product, it generally takes more time and is cost prohibitive for runs under 300 pieces. CD replication produces the standard shinny discs and duplication is on the greener discs. Duplication is normally faster. Keep these facts in mind when choosing which method you want to use in creating your CDs. Remember to plan ahead for either process.




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