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 Green saw the fertile interaction of reading/writing as rooted in the capacity to be alone. Capacity to be alone Capacity to be alone is a developmentally acquired ability, considered by object relations theory to be a key to creative living. Julia Kristeva sees it as central to an authentic inner life, as well as to creative sublimations in life and art. D. W. Winnicott in his article of that name (1958/64) highlighted the importance of the capacity to be alone, distinguishing it from both withdrawal and loneliness, and seeing it as derived from an internalisation of the non-intrusive background presence