Character position definition and scope:

A one-character alphabetic code indicates the type of disc (when 007/01 is code d), cylinder (007/01 is code e), or tape (007/01 is code g, s, or t).  A fill character ( | ) is used when no attempt has been made to code this position.

Record requirements for National-level and Minimal-level records:  Optional.

Guidelines for applying content designators:

Code:

Description:

a

Master tape

b

Tape duplication master

d

Disc master (negative)

i

Instantaneous (recorded on the spot)

m

Mass-produced

n

Not applicable  Item is not a disc, cylinder, or tape.

r

Mother (positive)

s

Stamper (negative)

t

Test pressing

u

Unknown

z

Other  A type of disc, cylinder, or tape for which none of the other defined codes is appropriate.

|

No attempt to code

Content designator history:

Character position 07 (Kind of disc, cylinder, or tape) was moved to position 09 when field 007 was restructured in 1981.

To return, select:

007:  Sound recording

007  Physical Description Fixed Field