Search results
Results From The WOW.Com Content Network
The track 01 pregap was used to hide computer data, allowing computers to detect a data track whereas conventional CD players would continue to see the CD as an audio CD. This method was made obsolete in mid 1996 when an update to Windows 95 in driver SCSI1HLP.VXD made the pregap track inaccessible.
Four-channel Compact Disc digital audio flag: indicates that the track uses four-channel audio (applies only to CD-DA). This is very rarely used on Compact Discs. Data flag: Indicates that this track contains data (rather than audio). Can be used for muting in audio CD players. Not used in the original CD-DA standard, added in the CD-ROM ...
Portable players, more so portable CD players but also some portable DVD players, that invariably include an ASP feature (Anti-Skip-protection), struggle with CD-R/RW, DVD-R/RW and DVD+R/RW discs – due to the ASP feature being enabled. This is due to the limited read capability of such write-yourself media discs over retail pressed discs.
A 1980s-era Denon CD player with the chassis cover removed to show the electronic and mechanical components. An example of a Pioneer CD player's tray closing. Sony released its CDP-101 CD player [44] in 1982 with a slide-out tray design for the CD. As it was easy to manufacture and to use, most CD player manufacturers stayed with the tray style ...
Requires the user to enter CD-code (or reads embedded CD-code) that describes geometry of CD to correctly locate data on the disc. SafeDisc (versions 1–5) Adds unique digital signature at the time of manufacturing which is designed to be difficult to copy or transfer so that software is able to detect copied media. SafeCast
For example, audio tracks on such media cannot be easily added to a personal music collection on a computer's hard disk or a portable (non-CD) music player. Also, many ordinary CD audio players (e.g. in car radios) had problems playing copy-protected media, mostly because they used hardware and firmware components also used in CD-ROM drives ...
Some copy protection schemes add false C2 errors to discs to discourage copying. While causing data loss on Video CDs ( Mode 2 Form 2 ) and Audio CDs , individual C2 errors are correctable on data CDs (using Mode 1 and Mode 2 Form 1 ).
Note that while portable CD player exists, portable compact disc player and portable Compact Disc player don't, which just shows that "compact disc player" is a rare term. 4.238.1.197 ( talk ) 01:48, 28 March 2013 (UTC) [ reply ]