Optical disc an additional tolerance to allow the use of less-than-perfect analog audio pre-filters to remove any higher frequencies. The first version of the standard allowed up to 75 minutes of music which required 650MB of storage. The DVD disc appeared after the CD-ROM had become widespread in society. The third generation optical disc was developed in 2000–2006 and was introduced as Blu-ray Disc. First movies on Blu-ray Discs were released in June 2006. Blu-ray eventually prevailed in a high definition optical disc format war over a competing format, the HD DVD. A standard Blu-ray disc can hold about 25 GB of
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