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A CD drive can have extraction errors when the data on the disc is not readable due to scratches or smudges. The drive can compensate by supplying a "best guess" of what the missing data was, then supplying the missing data.
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 ...
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
In 2008, Hard Disk Sentinel DOS version was released in different formats on bootable pen drive, CD, floppy. Usable when no operating system installed (or if the system is not bootable otherwise) to detect and display temperature, health status of IDE, SATA hard disk drives and with limited AHCI controller support.
This has been shown to shorten the drive's lifespan. Furthermore, XCP.Sony.Rootkit installs a device driver, specifically a CD-ROM filter driver, which intercepts calls to the CD-ROM drive. If any process other than the included Music Player (player.exe) attempts to read the audio section of the CD, the filter driver inserts seemingly random ...
The Windows 7 On-screen keyboard removes the ability to change or specify the font as a result of which keyboard layouts of fonts which use Dingbats and Unicode characters in place of alphabetic characters can no longer be viewed. The Windows 7 On-screen keyboard removes direct access to function keys. Function keys are now accessed using the ...
It is not suitable for detecting maliciously introduced errors. It is characterized by specification of a generator polynomial, which is used as the divisor in a polynomial long division over a finite field, taking the input data as the dividend. The remainder becomes the result. A CRC has properties that make it well suited for detecting burst ...
When an appropriately configured CD-ROM is inserted into a CD-ROM drive, Windows detects the arrival and checks the contents for a special file containing a set of instructions. For a CD containing software, these instructions normally initiate installation of the software from the CD-ROM onto the hard drive.