SOUND RECORDING -- 45 RPM
sd_c*mcnnmpln* [default values in black]
00 Category of material s sound recording
01 Specific material designation d sound disc
02 Original⁄reproduction aspect [OBSOLETE, leave blank or accepts defaults]
03 Speed c 33 1⁄3 rpm phonodisc
04 Configuration of playback channels
m mono
q quadrophonic
s stereo
u unknown
05 Grove width⁄groove pitch m microgrove (phonodisc)
06 Dimensions c 7 in. (standard 45 rpm phonodisc)
07 Tape width n not applicable
08 Tape configuration n not applicable
09 Kind of disk, cylinder, or tape m mass produced
10 Kind of material p plastic
11 Kind of cutting l lateral or combined cutting (modern discs)
12 Special playback characteristics n not applicable
13 Capture technique
e analog storage (ca. late 1940s-early 1980s)
d digital (45 says digital recording)
u unknown
Locally assigned call number format PHONO45 #####
Sample 300 tag:
‡a 1 sound disc : ‡b 45 rpm, mono. ; ‡c 7 in.
