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CD Duplication and Red Book Audio

CD duplication and Red Book Audio usually get mentioned together when an audio recording is being talked about. If you need some CD duplication and if you have spent any time locating a CD DVD duplication service, you may have come across these terms but not had a clue as what they were or how or if this information applies to your needs .

CD Duplication

All CD duplication projects are done on Red Book standard audio media.

CD Duplication

So what is the Red Book of audio duplication, what are the media standards it has set, and why is it so important? CD duplicators and replicators must adhere to produce discs that conform to certain standards.  The Red Book is one of the nine Rainbow Books, which provide universally agreed on specifications for all types of media.

CD Duplication

Red Book Audio

The Red Book provides the standards for audio CDs, also known as CDDA (or Compact Disc Digital Audio). There are also Yellow, Orange, White, Blue, Beige, Green, Purple, and Scarlet books in the Rainbow Book set.

These different colored books provide disc standards for:

  • • Yellow – CD-ROM and CD-ROM XA
  • • Orange – CD-R and CD-RW
  • • White – Video CD
  • • Blue – Enhanced CD, CD+G, and CD-Plus
  • • Beige – Photo CD Green –
  • • CD-I (Interactive)
  • • Purple – DDCD (Double Density Compact Disc)
  • • Scarlet – SACD (Super Audio CD)

Specifically as it relates to audio, according to the Red Book, a standard CD is 120mm in diameter, 1.2mm thick, and is made up of polycarbonate plastic substrate, one or more thin layers of reflective metal (usually aluminum), and a lacquer coating.

The disc is divided into 3 parts – The lead-in area containing the Table of Contents, the program area containing the audio data, and the lead-out area containing no data.

The Red Book of was developed in 1980 by Sony Phillips to specify the physical parameters of the audio CD. This includes the optical stylus parameters, deviations and error rate, modulation system and error correction, and subcode channels and graphics. When the question came up as to how many minutes a CD should hold, Beethoven’s Symphony #9 was the length standard at the time. The prevailing thought was Beethoven needed 74 minutes and if no one is as masterful as he, no one will need more than 74 minutes.

In terms of the business costs of development and research. each disc – either blanks that are sold or replicated CDs – a portion of your cost is a license fee that is paid back to Sony Phillips for the technology they researched and developed.  In the early days of CDs, the fees for the licensing were significantly higher than they are today. Today less than .10 per disc is collected by replication facilities and blank disc manufacturers and paid over to Sony Phillips.

If you wish to read more about red book audio – Wikipedia is a good source – click here

CD Duplication

One other major CD specification set by the Red Book is the form of digital audio encoding taken on by CDs. The parameters set have become a de-facto standard in the CD duplication industry.  And while CD manufacturers must adhere to these standards, cd player manufacturers do not have to ensure that their devices provide 100% CD audio playability. Over the years, as CDs went from 74 minutes to now 80 minutes, some CD players will still stop at 74 minutes 30 seconds which is the official requirement of red book audio.

{All in all, most consumers probably won’t be too concerned with the individual technical specifications set by the Red Book.| In general, the technical specifications of Red Book shouldn’t be the concern of most consumers. } But as a consumer you can take comfort in knowing that there is a high standard of quality being upheld when it comes to your CD duplication, DVD duplication or data CD duplication project. Make sure that when you go to your CD duplication service you ask them if they use Red Book quality CD media.

posted by Carolyn Holzman in CD Duplication,Red Book Audio and have Comment (1)