Search results
Results from the WOW.Com Content Network
A test CD is a compact disc containing tracks of musical and technical tests and demonstrations. Most of the tracks are made of electronic signals and pure frequencies . The purpose of these specialized compact discs is to make accurate tests and calibrate audio equipment .
The results of the power tests are stored in a Recording Management Area (RMA), which can hold up to 7,088 calibrations (in DVD-R). The disc can not be written to after the RMA becomes full, although it may be emptied in RW discs. CD-R, CD-RW, DVD-R, DVD+R, DVD-R DL, DVD+R DL, DVD+RW and DVD-R all have a PCA.
The following compact discs, sold by Sony BMG, were shipped with the computer software known as Extended Copy Protection (XCP). [1] As a result, any Microsoft Windows computer that has been used to play these CDs is likely to have had XCP installed. This can cause a number of serious security problems.
Sony Digital Audio Disc Corporation (Sony DADC) is a manufacturer of CDs, DVDs, UMDs, and Blu-ray Discs.The company has many plants worldwide. Although it primarily services Sony Music Entertainment-owned record labels, Sony Pictures Home Entertainment, and Sony Interactive Entertainment, it also manufactures discs for other labels, home entertainment distributors, and video game publishers.
The DualDisc is a type of double-sided optical disc product developed by a group of record companies including MJJ Productions Inc., EMI Music, Universal Music Group, Sony BMG Music Entertainment, Warner Music Group, and 5.1 Entertainment Group [1] and later under the aegis of the Recording Industry Association of America ().
In late 2005, Sony BMG Music sparked the Sony CD copy protection scandal when it included a form of copy protection called Extended Copy Protection ("XCP") on discs from 52 artists. [1] Upon inserting such a disc in the CD drive of a computer running Microsoft Windows , the XCP software would be installed.
ARccOS (Advanced Regional Copy Control Operating Solution) is a copy-protection system made by Sony that is used on some DVDs.Designed as an additional layer to be used in conjunction with Content Scramble System (CSS), the system deliberately creates corrupted sectors on the DVD, which cause copying software to produce errors (see bad sector).
Prerecorded DVDs are mass-produced using molding machines that physically stamp data onto the DVD. Such discs are a form of DVD-ROM because data can only be read and not written or erased. Blank recordable DVD discs (DVD-R and DVD+R) can be recorded once using a DVD recorder and then function as a DVD-ROM.