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Sony XDCAM HD Media
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Flexible Platform
The professional optical disc is a very flexible platform on which an assortment of data in a variety of formats can reside. The use of optical disc technology eliminates the restrictions inherent in proprietary tape footprints, and allows a variety of different video formats to be recorded using the same disc. It handles information as 'data files', and is therefore extremely flexible as to what can be recorded to it. In addition to video and audio streams, you can record a variety of metadata, such as date/time/location information, scripts, low resolution video and audio, etc. And the amount of metadata you record is completely up to you*, since the information does not have to reside on a limited, predetermined area of the disc.
Largest-Capacity Optical Disc
The superior disc capacity of the professional optical disc enables you to make high-quality yet long-duration recordings. Its 23.3-GB data capacity translates to a recording time of 45 to 90 minutes depending on the bit rate the camera operator chooses.
High Transfer Rate
The professional optical disc's data transfer rate is 72 Mb/s from a single optical head unit and 144 Mb/s on a dual head deck, providing stable recording and playback of high bit rate data such as a 50 Mb/s MPEG IMX™ stream.
Quick Random Access
The nonlinear nature of the professional optical disc alone provides tremendous benefit when handling audio/video content. When a recording is played back from the disc, its physical location on the disc does not impact the time required to access it. Recordings can be accessed in a fraction of the equivalent time taken to access information on tape, making it much easier and faster to locate source material. This is the beauty of random access, and all Sony PDW Series products are equipped with powerful features – delivering innovation to all your programming operations.
Highly Reliable, Durable and Re-usable Medium
Optical discs have a natural advantage since they suffer no mechanical contact during recording or playback, making the format ideal for continuous use and re-use. Professional optical discs are also highly resistant to dust, shock and scratches, packaged in an extremely durable and dust-resistant cartridge. They are resistant to heat and humidity, and are X-ray resistant – factors that make the professional optical disc ideal for use in harsh field environments, and also allow for long media life and long-term storage.The XDCAM HD products record video signals in 1080/59.94i, 50i, 29.97P, 25P, and native 23.98P using the “MPEG HD” codec that adopts the industry standard MPEG-2 MP@HL compression. Users can select desired bit rates either from 35, 25, or 18 Mb/s depending on their requirements for picture quality and recording length. Choosing the highest bit rate of 35 Mb/s results in the highest-quality pictures over a long recording time of over 60 minutes, while choosing the 18 Mb/s bit rate provides a recording time of over 120 minutes, which is the longest recording time offered by any current HD camcorder.
Specifications
| Storage capacity |
23.3GB |
| Laser wavelength |
405 nm (blue-violet) |
| 72 Mb/s (per optical head) |
Data transfer (writing) rate |
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| Disc diameter |
120 mm (4 5/8 inches) |
| Cartridge dimensions |
(W x H x D) 129 x 131 x 9 mm
(5 1/8 x 5 1/4 x 3/8 inches) |
| Mass |
89g (3oz) |
| Recording format |
Phase change recording |
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