ISO 18938:2014 イメージング材料—光ディスク—長期保管のための手入れと取り扱い | ページ 6

3.1

acclimatization staging

process of conditioning material from one set of temperature-moisture conditions to another

3.2

balance

precision vertical position of the disc as it spins

3.3

blister

localized delamination that looks like a bubble

3.4

Blu-ray Disc

BD

optical disc having a cover layer around 0,1 mm thick and a substrate around 1,1 mm thick on which data is read or recorded by an OPU using 405 nm laser diode and NA = 0,85 lens

3.4.1

Blu-ray Disc Read Only Memory

BD-ROM

optical disc to which information is transferred during manufacture to moulded areas in the Blu-ray disc format and can be read multiple times by an optical beam

3.4.2

Blu-ray Disc Recordable

BD-R

recordable optical disc in which information can be recorded once to areas in the Blu-ray disc format and read many times

3.4.3

Blu-ray Disc Rewritable

BD-RE

recordable optical disc in which information can be recorded to areas in the Blu-ray disc format and can be erased, rerecorded and read many times

3.5

carton

box outer container that can hold one or more individual units and can be a fabrication of paper, card stock or plastic

3.6

compact disc

CD

optical disc in which the information layer is located near one surface of a substrate and the data can be read by an optical beam with a wave length of 780 nm

Note 1 to entry: Described in IEC 60908.

3.6.1

CD read only memory

CD-ROM

optical disc to which information is transferred during manufacture to moulded areas in the compact disc format and can be read multiple times by an optical beam

Note 1 to entry: Described in ISO/IEC 10149.

3.6.2

CD Recordable

CD-R

recordable optical disc in which information can be recorded once to areas in the compact disc format and read many times

3.6.3

CD Rewritable

CD-RW

rewritable optical disc in which information can be recorded to areas in the compact disc format and can be erased, rerecorded and read many times

3.7

conditioning

exposure of a material to air at a given relative humidity and temperature until equilibrium is reached

3.8

container

box, can or carton used for storage and shipping of recording materials

3.9

delamination

separation of a laminate into its constituent layers

3.10

digital versatile disc

DVD

optical disc in which one or more information layers are located between two substrates and the data can be read by an optical beam with a wave length of 650 nm

Note 1 to entry: Formerly called digital video disc.

3.10.1

DVD read only memory

DVD-ROM

optical disc in which information is transferred during manufacture to certain areas in the DVD format and can be read multiple times by an optical beam

Note 1 to entry: Described in ISO/IEC 16448 and ISO/IEC 16449.

3.10.2

DVD Recordable

DVD-R, +R

recordable optical disc in which information can be recorded once to areas in the DVD format and read many times

Note 1 to entry: Described in ISO/IEC 23912, ISO/IEC 17344 and ISO/IEC 25434.

3.10.3

DVD Rewritable

DVD-RAM, DVD-RW, +RW

DVD optical discs that can be written, read and overwritten many times using phase change technology

Note 1 to entry: Described in ISO/IEC 17592, ISO/IEC 17341 and ISO/IEC 26925.

3.11

enclosure

case, cartridge, folder, envelope, sleeve or clam shell that is intended for physical protection against mechanical damage

3.12

extended-term storage conditions

storage conditions suitable for the preservation of recorded information having permanent value

3.13

high definition digital versatile disc

HD DVD

optical disc in which one or more information layers are located between two substrates and the data can be read by an optical beam with a wave length of 405 nm

Note 1 to entry: Sometimes called high density digital versatile disc.

3.13.1

HD DVD read only memory

HD DVD-ROM

optical disc in which information is transferred during manufacture to certain areas in the HD DVD format and can be read multiple times by an optical beam

3.13.2

HD DVD recordable

HD DVD-R

recordable optical disc in which information can be recorded once to areas in the HD DVD format and read many times

3.13.3

HD DVD rewritable

HD DVD-RW

HDDVD optical discs that can be written, read and overwritten many times using phase change technology

3.14

information

data recorded using the system

3.15

insulated record container

storage box designed to provide an environmental buffer against temperature and humidity fluctuations

3.16

jewel case

plastic enclosure featuring a hinged lid and one or more trays, each containing a hub clamp to secure and protect the disc surface

3.17

keep case

case designed for DVD discs slightly larger than a jewel case

3.18

macroenvironment

atmospheric conditions in a large area in which records are kept

Note 1 to entry: Atmospheric conditions are temperature, relative humidity and pollutants.

3.19

medium

material on which information is recorded

3.20

microenvironment

atmospheric conditions inside a storage enclosure in which records are kept

Note 1 to entry: Atmospheric conditions are temperature, relative humidity and pollutants.

3.21

optical disc

disc that will accept and retain information from light modulation changes in a recording or reflective layer that can be read with an optical beam

3.22

optical disc cartridge

ODC

optical disc enclosure required for the operation of the disc

3.23

recording layer

layer of an optical disc on which data is written either during manufacture or in use

3.24

relative humidity

RH

ratio, defined as a percentage, of the existing partial vapour pressure of water to the vapour pressure at saturation

Note 1 to entry: It is usually, but not always, equal to the percentage of the amount of moisture in the air to that at saturation.

3.25

replicated disc

disc made by an injection moulding process where the land and pits that make up the data are physically pressed into the polycarbonate

3.26

retrievability

ability to access information as recorded

3.27

slimline case

slimmer version of the jewel case

3.28

snapper case

alternative to the keep case with a cardboard cover

3.29

storage environment

conditions for storing materials

Note 1 to entry: The conditions are temperature, relative humidity, cleanliness of facilities and atmospheric pollutants.

3.30

storage housing

physical structure supporting materials and their enclosures

Note 1 to entry: It can consist of drawers, racks, shelves or cabinets.

3.31

substrate

layer which may be transparent or not, provided for the mechanical support of the recording layer

3.32

system

combination of media, hardware, software and documentation necessary for recording and/or retrieving information

3.33

WORM disc

optical disc in which the data in specified areas can be written only once and read multiple times by an optical beam