The disc unit has tree major functions: 1.

Disc enlarger. 3.

Disc unit. 2.

The resulting duplicate disc is detached from the source disc (20), said duplicate disc being the master disc (10).

Disc assembly (40) has a knife disc (54) and disc assembly (42) has a knife disc (72).

The rotor includes an inboard disc and an outboard disc.

The optical device includes an optical disc, such as Compact Disc (CD) or Digital Video Disc (DVD).

The disc can be used as a ROM or WORM disc.

The disc brake includes an expansion chamber that increases the volume of air passing over the disc (rotor).

The optical recording disc is in the shape of a disc as a whole.

As regards the primary disk and the secondary disk, the primary disk or the secondary disk, whichever is arranged more toward the outside, has a greater warpage.

Whether a disc exists in the disc device is discriminated.

When the pair of pressure rollers are pressed onto the primary disk and the secondary disk, the convex parts formed on one of the primary disk and the secondary disk engage with the concave parts formed on the other disk.

A disc layer configuration judging section (180) for a recording/reproducing device (100) discriminates a disc for recording contents data is a single layer disc (10) or a dual layer disc (20).

The present invention concerns a disc brake having a fixed brake disc (6).

In a composite disc for disc brakes of heavy vehicles, a hub (2) is arranged to accept and to restrain a braking band (3) comprising two plates (4, 5) connected rigidly to one another by axial elements (7).

To restore the disk, a physical disk is created, with the virtual disk the created on a partition of the physical disk.

When a disk in the array (critical disk) exceeds the error threshold, the controller copies the critical disk data to a spare disk.

Diskscores for each disk are calculated.

Each optical disk has a unique disk ID.

The second disk is aligned with the first disk to provide fluid communication between the void of the first disk and the void of the second disk, the void of the first disk being offset or staggered from the void of the second disk.

A disk supporting device which supports a disk that serves as such a recording medium as the optical disk device or magneto-optical disk device.

Other parameters used to correct the laser power take into account the scanning velocity of the disc and the amount of disc tilt.Application: Recording for CD (compact disc), DVD (digital versatile disc), BD (Blu-ray Disc).

The record player may have a rotatable stylus playing a stationary record.

A disc, a disc manufacturing method, and a recording/reproducing system capable of knowing which content is recorded on which disc without reproducing the content of a disc.

A recording medium wherein the disc, which is physically prepared as a rewritable disc, can be appropriately used as a write-once type.

A CD-ROM is loaded in an optical disk device in an optical disk controller (80).

The disk actuator includes a disk and a shaft, where the shaft is connected to the disk such that rotation of the disk causes rotation of the shaft.

The bladed disk assembly includes a disk centered on an axis.

A RAMdisk is created having a RAMdisk address and the operating system is copied from the hard disk to the RAMdisk.

The rotations of the outer and inner disk are driven by motors, and the rotations direction of the inner and outer disk are opposite.