The most common types are CD, DVD and Blu-ray. As removable media, optical discs superseded the earlier magnetic disk cartridges because they weigh less, have higher capacities and are not subject ...

Starting while at a Silicon Valley startup, Siros Technologies, we explored an alternative approach extnending current optical disk technologies. Here, a spinning disk is written and read by a focused ...

An earlier removable, rewritable optical disk that also used magnetic technology. Introduced in 1985, magneto-optic (MO) media and drives are no longer manufactured. Refurbished drives and media ...

This internal monitor photodiode, which can be used to accurately stabilize and control the optical output power ... is used for sputtering the label side of the disk with a moisture barrier.