340 - Physical Medium (R)

$a - Material base and configuration (R)

$b - Dimensions (R)

$c - Materials applied to surface (R)

$d - Information recording technique (R)

$e - Support (R)

$f - Production rate/ratio (R)

$h - Location within medium (R)

$i - Technical specifications of medium (R)

$j - Generation (R)

$k - Layout (R)

$m - Book format (R)

$n - Font size (R)

$o - Polarity (R)

$0 - Authority record control number or standard number (R)

See description of this subfield in Appendix A: Control Subfields.

$2 - Source (NR)

$3 - Materials specified (NR)

$6 - Linkage (NR)

See description of this subfield in Appendix A: Control Subfields.

$8 - Field link and sequence number (R)

See description of this subfield in Appendix A: Control Subfields.