Nowadays, A-grade CD’s seem the norm. In the early days of disc manufacturing, it was reported that many factories purposely mixed A, B, and C grade cd’s together – to ensure the unit prices were kept as low as possible. The top grade discs were usually reserved for industrial use instead of personal home use. These discs were known as medical grade, and were perceived as too expensive for the average user.
However with rapid advances in technology and ever lower production costs, every computer soon came with a CD burner, and CD’s became the most popular format of blank media. It wasn’t before long that we began to learn about disc rot and realised these cheap poor production discs were not lasting long.
The demand for better quality CD discs became much higher, hence now the A-grade discs were kept separate to sell as an A-grade pack. The grades are determined arbitrarily by manufacturers, as long as each CD-r disc has passed the ‘Philips quality requirements’. These requirements involve the discs being optically scanned for defects such as bubbles and black or white spots. After scanning, the least defected discs that pass will receive the manufactures a-grade classification.
Unfortunately this does means that each brands A-grade discs will vary in quality. For this reason, we at Disc Factory compared various brands of A-Grade blank media, to ensure that we found a brand that we can rely on to keep their standards high. As we discovered not all manufacturers A-grade discs are not always seen as A-grade to ourselves or our customers meaning that despite claiming A-Grade shortrun CD Duplication some companies may not be offering the best media to customers.