Sony PDWU1 Family Brochure (XDCAM Family Brochure) - Page 4

Nonlinear Recording Medium, The Professional Disc

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"Nonlinear" Recording Medium - The Professional Disc The Sony Professional Disc, PFD23A is a single-sided, optical disc that uses state-of-the-art blue-violet laser technology to enable extremely large-capacity recordings. The diameter of the disc is a mere 12 cm, equal to that of other optical media such as CDs or DVDs. Yet, despite its small size, the disc provides an amazing storage capacity of 23.3 GB - a feat made possible using a 405 nm blue-violet laser, an objective lens with a 0.85 numerical aperture (NA), and a specially developed recording layer. Sony has taken great care in selecting the Professional Disc as the next-generation professional recording medium. The choice is based on Sony experience and technical expertise in developing and marketing a wide range of professional products that have effectively served users around the world for several decades. 4

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“Nonlinear” Recording Medium –
The Professional Disc
The Sony Professional Disc, PFD23A is a single-sided, optical disc that uses state-of-the-art blue-violet
laser technology to enable extremely large-capacity recordings.
The diameter of the disc is a mere 12 cm, equal to that of other optical media such as CDs or DVDs.
Yet, despite its small size, the disc provides an amazing storage capacity of 23.3 GB – a feat made
possible using a 405 nm blue-violet laser, an objective lens with a 0.85 numerical aperture (NA),
and a specially developed recording layer.
Sony has taken great care in selecting the Professional Disc as the next-generation professional
recording medium.
The choice is based on Sony experience and technical expertise in developing
and marketing a wide range of professional products that have effectively served users around the
world for several decades.