CDR, first created by Philips and Sony, is a pre-manufactured blank compact disc in which information can be recorded and burned. Most CDR's can be used until their memory is full, and they can only be read after they are finalized, have been burned, and cannot be deleted. Information is stored in a particular dye layer, then burned and converted into a digital product.
CDR's have a short shelf life, and after a couple of years, the information stored may become unreadable. CD ROMs, on the other hand, cannot be written on, and they also cannot be burned. All the data collected in them is pressed into the discs, which can be read by digital devices such as PC or CD ROM drives, as well as CD players. They are being used to allocate computer software games and multimedia applications.
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