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The LV-ROM is a specialized variation of the CAV Laserdisc. LV-ROM is an initialism for "LaserVision Read-Only Memory". Like Laserdisc, LV-ROM discs store analog audio and video by encoding it in pulse-width modulation. However, LV-ROM also stores computer files via the Advanced Disc Filing System, which is the file system used by Acorn Computers.
These high-end LaserDisc players could add features not normally available to CLV discs, such as variable forward and reverse, and a VCR-like "pause". By gradually slowing down their rotational speed (1800–600 rpm for NTSC and 2470–935 rpm for Hi-Vision) [ 23 ] CLV encoded discs could store 60 minutes of audio/video per side for NTSC and Hi ...
In contrast, in CLV mode, the spindle motor speed varies so that the medium passes by the head at the same speed regardless of where on the disk the head is positioned. If the disk is recorded at the same areal density throughout, then when read or written in CAV mode, the data rate is higher for the outer tracks than for the inner tracks ...
The Zone-CLV recording strategy is easily visible after burning a DVD-R. Zoned constant linear velocity (ZCLV or Z-CLV) is a modification of CLV for high speed CD and DVD recorders where a constant linear velocity is maintained until the next zone, when the speed is stepped up. Early model recorders were CLV drives.
Other factors that affect data storage density include: the existence of multiple layers of data on the disc, the method of rotation (Constant linear velocity (CLV), Constant angular velocity (CAV), or zoned-CAV), the composition of lands and pits, and how much margin is unused is at the center and the edge of the disc. Types of Optical Discs:
American Laser Games was a company based in Albuquerque, New Mexico that created numerous light gun laserdisc video games featuring live action full motion video.The company was founded in the late 1980s by Robert Grebe, who had originally created a system to train police officers under the company name ICAT (Institute for Combat Arms and Tactics) and later adapted the technology for arcade games.
A 21-year-old Norwegian woman has become the youngest person to reach the South Pole on skis, solo and without assistance, her team told AFP on Tuesday. Karen Kylleso accomplished the feat ...
Laserdisc technology, using a transparent disc, [1] was invented by David Paul Gregg in 1958 (and patented in 1970 and 1990). [2] [3] By 1969 Philips had developed a videodisc in reflective mode, which has great advantages over the transparent mode. MCA and Philips decided to join their efforts. They first publicly demonstrated the videodisc in ...