An acoustic revolution was spurred 25 yr ago when ABBA's "The Visitors" album was burned into the first compact discs made from Makrolon polycarbonate (PC) from Bayer MaterialScience (BMS), Pittsburgh. Working with Philips and PolyGram, BMS developed CD technology based on a specially tailored PC that still serves as the material for many optical recording media including DVD, HD-DVDs, and Blu-ray discs that provide 80 times the capacity of a CD. And even better materials and technologies are permitting the use of increasingly larger data volumes. The future, contends BMS, belongs to holographic media, with the storage of several hundreds of gigabytes.



Over 900,000 metric tons of PC currently are used for making optical recording media. In 1982 it took 27 sec to produce a CD, production time currently sits at less than 3 sec. (Photo credit: MaterialScience)



BMS developed CD technology based on a specially tailored PC that still serves as the material for many optical recording media including DVD, HD-DVDs, and Blu-ray discs that provide 80 times the capacity of a CD. (Photo credit: MaterialScience)

Vise za citanje imate ovde

Bravo za CD-ove, svaka njima čast 
....ali što se tiče nosača zvuka, ni jedan audio CD ne može da nadmaši gramofonske ploče

 

Šta?
Nešto nije uredu?

da

Sme li se znati šta konkretno?

ne da mi se otici po pivo

Analogno je analogno. I danas imam gramofon i oko 300 ploca kao da su sada izasle ispod stanc masine.

tacno da tacnije ne moze biti