Dual Layer Dvd: Rewritable Cd

Tuesday, 16 October 2012

Rewritable Cd

The CD-R (CD-Recordable) and CD-RW (CD-ReWritable) are not recent developments. CD-R was introduced for professional use as long ago as 1991, and after many years of development the CD-RW came onto the market in 1997. However a CD recorder was much too expensive for the consumer market. Pioneer launched a relatively affordable consumer audio recorder for CD-R (not CD-RW) in 1996, although it was Philips as inventor of the CD that was the first to introduce a CD recorder for both CD-R and CD-RW in 1997. Philips also offered blank CD-R discs at a price of around 5.45 euro each. CD-RW discs were initially much more expensive, but their price - like that of CD-R discs - has now fallen dramatically.
The combination of CD-R and CD-RW was a deliberate one, because CD was the absolute world standard and the world’s most popular digital audio carrier with a tremendous penetration (even exceeding 100% in the Netherlands). And a CD-R can be played on any CD player. Plus the fact that both CD-R and CD-RW, just like the CD itself, have a full 16-bit resolution and a sampling frequency of 44.1 kHz, which ensures that consumers’ own recordings have just the same high quality as any other CD.