| Position | Compact Disc | Cassette Tape |
|---|---|---|
| 00 - Category of material | s (sound recording) | s (sound recording) |
| 01 - SMD | d (disc) | s (cassette) |
| 02 - Undefined | leave blank | leave blank |
| 03 - Speed | f (1.4 m. per sec.) | l (1 7/8 ips) |
| 04 - Configuration of playback channels | m (mono) q (quad) s (stereo) u (unknown) |
m (mono) q (quad) s (stereo) u (unknown) |
| 05 - Groove width | n (not applicable) | n (not applicable) |
| 06 - Dimensions | g (4 3/4 in. or 12 cm.) | j (3 7/8 x 2 1/2 in.) |
| 07 - Tape width | n (not applicable) | h (1/8 in. for most cassettes) |
| 08 - Tape configuration | n (not applicable) | c (quarter track for most cassettes) |
| 12 - Special playback characteristics | c (Dolby-B [standard] ) n (not applicable) u (unknown) |
c (Dolby-B [standard]) n (not applicable) u (unknown) |
| 13 - Capture and storage technique (look at SPARS code; 1st digit = capture) |
d (digital storage) e (analog electrical storage [pre-1982] ) u (unknown) | (no attemplt to code) |
d (digital storage) e (analog electrical storage [pre-1982] ) u (unknown) | (no attemplt to code) |
| Format | Dates |
|---|---|
| Cassette tapes | 1965 and later |
| Compact discs | 1982 (Europe) 1983 (United States) |
| Situation | 008 | 260 |
|---|---|---|
| "p" date of 1973 on compact disc. Infer publication date. | 1992,1973 | [1992], p1973 |