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Disc Description Protocol
Disc Description Protocol (DDP) is a format for specifying the content of optical discs, including CDs and DVD The DVD (common abbreviation for Digital Video Disc or Digital Versatile Disc) is a digital optical disc data storage format. It was invented and developed in 1995 and first released on November 1, 1996, in Japan. The medium can store any kind ...s. DDP is commonly used for delivery of disc premasters for duplication. DDP is a proprietary format and is the property of DCA. The file format specification is not freely available. The DDP must contain 4 parts:Francis Rumsey, Desktop Audio Technology, 2004, Focal Press # Audio image(s) (.DAT file(s)) # DDP Identifier (DDPID) # DDP Stream descriptor (DDPMS) # Subcode descriptor (PQDESCR) An optional text file, containing the track titles and timings, can also be included. Software Windows PC: *Adobe Encore *Cockos Reaper *DCA Viper *Eclipse Image Encoder *Gear Pro Mastering *HOFA CD Burn & DDP *Magix Sequoia *Mergi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Disc
In computing and optical disc recording technologies, an optical disc (OD) is a flat, usually circular disc that encodes binary data (bits) in the form of pits and lands on a special material, often aluminum, on one of its flat surfaces. Its main uses are physical offline data distribution and long-term archival. Changes from pit to land or from land to pit correspond to a binary value of 1; while no change, regardless of whether in a land or a pit area, corresponds to a binary value of 0. Non-circular optical discs exist for fashion purposes; see shaped compact disc. Design and technology The encoding material sits atop a thicker substrate (usually polycarbonate) that makes up the bulk of the disc and forms a dust defocusing layer. The encoding pattern follows a continuous, spiral path covering the entire disc surface and extending from the innermost track to the outermost track. The data are stored on the disc with a laser or stamping machine, and can be accesse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
