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Track At Once
In optical disc authoring, there are multiple modes for recording, including Disc-At-Once, Track-At-Once, and Session-At-Once. CD Disc-At-Once Disc-At-Once (DAO) for CD-R media is a mode that masters the disc contents in one pass, rather than a track at a time as in Track At Once. DAO mode, unlike TAO mode, allows any amount of audio data (or no data at all) to be written in the "pre-gaps" between tracks. One use of this technique, for example, is to burn track introductions to be played before each track starts. A CD player will generally display a negative time offset counting up to the next track when such pre-gap introductions play. Pre-gap audio before the first track of the CD makes it possible to burn an unnumbered, "hidden" audio track. This track can only be accessed by "rewinding" from the start of the first track, backwards into the pre-gap audio. DAO recording is also the only way to write data to the unused R-W sub-channels. This allows for extended graphic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Disc Authoring
Optical disc authoring, including CD, DVD, and Blu-ray Disc authoring, is the process of assembling source material—video, audio or other data—into the proper logical volume format to then be recorded ("burned") onto an optical disc (typically a compact disc or DVD). Process To burn an optical disc, one usually first creates an optical disc image with a full file system, of a type designed for the optical disc, in temporary storage such as a file in another file system on a disk drive. One may test the image on target devices using rewriteable media such as CD-RW, DVD±RW and BD-RE. Then, one copies the image to the disc (usually write-once media for hard distribution). Most optical disc authoring utilities create a disc image and copy it to the disc in one bundled operation, so that end-users often do not know the distinction between creating and burning. However, it is useful to know because creating the disc image is a time-consuming process, while copyin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Run-out Block
Run-out or runout is an inaccuracy of rotating mechanical systems, specifically that the tool or shaft does not rotate exactly in line with the main axis. For example; when drilling, run-out will result in a larger hole than the drill's nominal diameter due to the drill being rotated eccentrically (off axis instead of in line). In the case of bearings, run-out will cause vibration of the machine and increased loads on the bearings. Run-out is dynamic and cannot be compensated. If a rotating component, such as a drill chuck, does not hold the drill centrally, then as it rotates the rotating drill will turn about a secondary axis. Absolute alignment is impossible; a degree of error will always be present. Types Run-out has two main forms: * ''Radial run-out'' is caused by the tool being translated off the machine axis, still parallel. Radial run-out will measure the same all along the machine axis. * '' Axial run-out'' is caused by the tool or component being at an a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cdrdao
cdrdao (''“ CD recorder disc-at-once”'') is a free and open source utility software application for authoring and ripping of audio and data CD-ROMs. It is licensed under GPL-2.0 or Later. The application is available for several operating systems, including Linux, Windows, and macOS, and was reported to work on other operating Unix-based operating systems. cdrdao runs from command line and has no graphical user interface. Several programs for authoring and writing CDs depend on cdrdao and provide a GUI, such as Brasero, K3b. cdrdao powers Brasero, the default CD application for the GNOME desktop until around 2013. Features Cdrdao is capable of reading and writing audio, data, and mixed audio/data discs. It records audio or data CD-Rs in disk-at-once mode based on a textual description of the CD contents, known as a TOC (table of contents) file that can be created and customized inside a text editor. When reading CDs, cdrdao creates a binary dump of the data inside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optimum Power Calibration
Optimized Power Control, also known as Optimum Power Calibration, abbreviated OPC, is a function of optical disc recorders. It checks the proper writing power and reflection of the media in use, calculating the optimum laser power and adjusting it for writing the particular session. More sophisticated is Active OPC or Running OPC. Active OPC monitors writing power and reflection of the media in use, calculating the optimum laser power and adjusting it in real-time, which, in theory, should result in a better quality burn A burn is an injury to skin, or other tissues, caused by heat, electricity, chemicals, friction, or ionizing radiation (such as sunburn, caused by ultraviolet radiation). Most burns are due to heat from hot fluids (called scalding), soli .... See also * Optical disc recording technologies * Write strategy External links * * Running Optimum Power Control: Data Integrity in CD-Recording {{electronics-stub Optoelectronics Optical disc authorin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Disc Recording Technologies
Optical disc authoring requires a number of different optical disc recorder technologies working in tandem, from the optical disc media to the firmware to the control electronics of the optical disc drive. Types of recordable optical disc There are numerous formats of recordable optical direct to disk on the market, all of which are based on using a laser to change the reflectivity of the digital recording medium in order to duplicate the effects of the pits and lands created when a commercial optical disc is pressed. Emerging technologies such as holographic data storage and 3D optical data storage aim to use entirely different data storage methods, but these products are in development and are not yet widely available. The earliest form is magneto-optical, which uses a magnetic field in combination with a laser to write to the medium. Though not widely used in consumer equipment, the original NeXT cube used MO media as its standard storage device, and consumer MO tec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Packet Writing
Packet writing (or incremental packet writing, IPW) is an optical disc recording technology used to allow write-once and rewritable CD and DVD media to be used in a similar manner to a floppy disk from within the operating system. Details Packet writing allows users to create, modify, and delete files and directories on demand without the need to ''optical disc authoring, burn'' a whole disc. Packet writing technology achieves this by writing data in incremental blocks rather than in a single block. Deleting files and directories of a CD-R using packet writing technology does not recover the space occupied by these objects but, rather, they are simply marked as being deleted (making them effectively ''hidden''). Similarly, changes to files cause new instances to be created instead of replacing the original files. Because of this, the available space on a non-rewritable medium using packet writing technology will decrease every time its content is modified. The most common fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaha Corporation
is a Japanese multinational musical instrument and audio equipment manufacturer. It is one of the constituents of Nikkei 225 and is the world's largest musical instrument manufacturing company. The former motorcycle division was established in 1955 as Yamaha Motor Co., Ltd., which started as an affiliated company but has been spun-off as its own independent company. History was established in 1887 as a reed organ manufacturer by Torakusu Yamaha () in Hamamatsu, Shizuoka Prefecture, and was incorporated on 12 October 1897. In 1900, the company manufactured the first piano to be made in Japan, and its first grand piano two years later. In 1987, 100 years after the first reed organ built by Yamaha, the company was renamed Yamaha Corporation in honor of its founder. The company's origins as a musical instrument manufacturer are still reflected today in the group's logo—a trio of interlocking tuning forks. After World War II, company president Genichi Kawakami repur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finalize (optical Discs)
Finalizing (also spelled finalising) an optical disc is the process of writing out support data such as DVD menus, directory data, and the like to an optical disc in order to make it playable on a system other than the one it was recorded on. As a general rule, finalization means that the disc cannot have any additional data written to it. It is the last step in the DVD authoring process. The term is also used as an alternative word for the "closing" of a CD-R, in which Table of Contents A table of contents (or simply contents, abbreviated as TOC), is a list usually part of the Book design#Front matter, front matter preceding the main text of a book or other written work containing the titles of the text's sections, sometimes with ... data and the like are written out to enable the computer to read a CD. Like DVD finalization, a closed CD-R cannot receive any additional data. Some recording formats, such as DVD+VR, do not require finalization before they can be played. Opt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Disc Authoring
Optical disc authoring, including CD, DVD, and Blu-ray Disc authoring, is the process of assembling source material—video, audio or other data—into the proper logical volume format to then be recorded ("burned") onto an optical disc (typically a compact disc or DVD). Process To burn an optical disc, one usually first creates an optical disc image with a full file system, of a type designed for the optical disc, in temporary storage such as a file in another file system on a disk drive. One may test the image on target devices using rewriteable media such as CD-RW, DVD±RW and BD-RE. Then, one copies the image to the disc (usually write-once media for hard distribution). Most optical disc authoring utilities create a disc image and copy it to the disc in one bundled operation, so that end-users often do not know the distinction between creating and burning. However, it is useful to know because creating the disc image is a time-consuming process, while copyin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CD-ROM XA
A CD-ROM (, compact disc read-only memory) is a type of read-only memory consisting of a pre-pressed optical compact disc that contains computer data storage, data computers can read, but not write or erase. Some CDs, called enhanced CDs, hold both computer data and audio with the latter capable of being played on a CD player, while data (such as software or digital video) is only usable on a computer (such as ISO 9660 format PC CD-ROMs). During the 1990s and early 2000s, CD-ROMs were popularly used to distribute software and data for computers and fifth generation video game consoles. DVDs as well as downloading started to replace CD-ROMs in these roles starting in the early 2000s, and the use of CD-ROMs for commercial software is now rare. History The earliest theoretical work on optical disc storage was done by independent researchers in the United States including David Paul Gregg (1958) and James Russell (inventor), James Russel (1965–1975). In particular, Gregg's paten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trance Music
Trance is a genre of electronic dance music that emerged from Electronic body music, EBM in Frankfurt, Germany, in the late 1980s and early 1990s, and quickly spread throughout Europe. Trance music is typically characterized by a tempo between 120 and 150 beats per minute (BPM), repeating Melodic music, melodic Phrase (music), phrases and a musical form that distinctly builds tension and elements throughout a track often culminating in 1 to 2 "peaks" or "drops". Although trance is a genre of its own, it liberally incorporates influences from other musical styles such as techno, House music, house, Chill-out music, chill-out, classical music, tech house, Ambient music, ambient and film music, film scores. A trance is a state of Hypnosis, hypnotism and heightened consciousness. This is portrayed in trance music by the mixing of layers with distinctly foreshadowed build-up and release. A common characteristic of modern trance music is a mid-song climax followed by a soft breakdow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Master Recording
Master recordings, or simply masters, are the original recordings—including post-recording mixes and production edits—of audio performances, from which all analog and digital copies of the audio are derived from. The term refers only to the recorded performance of a song; it does not cover the composition of recorded material, which is a separate copyright that belongs to the songwriter unless ownership of the copyright is transferred or sold to a separate entity. References Copyright law legal terminology {{Sound-tech-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
