Optical disc drive rewritable 5.25-inch optical disc drive in 1987, with dual-sided discs capable of holding 325 MB per side. The CD-ROM format was developed by Sony and Denon, introduced in 1984, as an extension of Compact Disc Digital Audio and adapted to hold any form of digital data. The CD-ROM format has a storage capacity of 650 MB. Also in 1984, Sony introduced a LaserDisc data storage format, with a larger data capacity of 3.28 GB. The DVD format, developed by Panasonic, Sony, and Toshiba, was released in 1995, and was capable of holding 4.7 GB per layer. The first Blu-Ray prototype
Capacity to be alone being allowed "just to lie back and float", and of the "opportunity that the baby has to experience separation without separation". Out of those early experiences emerges the capacity to be alone in (or out of) the presence of others - something which might have to be re-acquired later in life through psychotherapy. A later strand of analysis, drawing on the work on listening of Theodore Reik, has emphasised the importance of the "analyst"'s capacity to be alone in the analytic situation - to remain centred in themselves in the face of the projections and resistances of the patient. André