Motion Picture Archival Copy Abbreviations
Intermediate copies designated with an (I), which are used to make film or videotape copies, are identified by the National Archives using the following abbreviations.
I. Motion Picture Film (I) Copies:
Negatives
| DNC | Duplicate Negative, Composite |
| DNS | Duplicate Negative, Silent |
| INSK | Internegative, Silent - Color |
Masters
| FGMC | Fine Grain Master, Composite (35mm only) |
| FGMS | Fine Grain Master, Silent (35mm only) |
| INTPSK | Inter Positive, Silent - Color |
| INCK | Internegative Composite Color |
| MPPC | Master Projection Print, Composite (earliest generation) |
| MPPS | Master Projection Print, Silent (earliest generation) |
| MPSK | Master Positive, Silent - Color |
Miscellaneous
| (C) | Indicates composite (sound on film) |
| (E) | Indicates polyester base |
| (I) | Indicates intermediate |
| (K) | Indicates color |
Separate Tracks
| DNT | 35/16mm Duplicate Negative Track |
| MAG | 35/16mm Magnetic tracks |
| MPT | 35/16mm Master Positive Track |
Footage Conversion Formula for Film-to-Video Transfers
- 90 feet in 35mm = 1 minute
- 36 feet in 16mm = 1 minute
PLEASE NOTE: If any archival abbreviation listed on your Item Approval Request Form shows any of the abbreviations listed above and an "A" at the end of the "code," the "A" means that the film exists on Acetate (plastic) stock.
II. Video Recordings (I) Copies:
| DBVT | Digital Betacam |
| VM w/number | 1-in Type C videotape |
| 3/4-in | U-matic |
| D-2 | Digital Composite, Format 3/4-in |
