Mercury. Most people know that this element is toxic âitâs been phased out of many products and has even been banned in some countries as an ingredient in cosmeticâwhich makes it all the more surprising that many skin bleaching products out there still contain mercury.ercury. Most people know that this element is toxic âitâs been phased out of many products and has even been banned in some countries as an ingredient in cosmeticâwhich makes it all the more surprising that many skin bleaching products out there still contain mercury.
One group of manufacturers is known as the DVD forum, made up of Mitsubishi, Hitachi, Time Warner and Sony support DVD-R, whilst the +R format is supported by the DVD+RW Alliance, who consist of Sony, Yamaha, Philips and Dell. These days all modern writers support both types of DVD format.
I figured it was time to go over the various types of CDs, DVDs, and Blu-ray discs, and the drives that read and write to them. I can't blame anyone for being confused. We've got three types of optical discs (CDs, DVDs, and BDs), with five different capacities between them.