Preservation

Fee Request Optical Disc [TXT-D1]

Record Type Textual, Micrographic and Cartographic Records, Posters and Illustrated Materials
Expected Use Distribution Copy
Product Name Fee Request Optical Disc [TXT-D1]
Product Purpose

This product fulfills fee requests by researchers for microfilm publications.

Nature of Source Material

High Contrast Textual Median - B&W [TXT-R1] or Textual Median - Grayscale [TXT-R2] reproduction master file

OR

Analog microfilm legacy printing master

File Properties Data Format

JPEG or PDF

Capture Information

Same capture information as Reproduction Master :

Bit-depth

  • 1-bit (bitonal)

Spatial Resolution

  • 300 ppi at original size, for records with smallest significant character of 2.0 mm or larger

- OR -

Bit-depth

  • 8-bit grayscale

Spatial Resolution

  • 300 ppi at 11x ratio
Other Information
  • This product is output to an optical disc (CD/DVD)
  • Analog microfilm printing masters are no longer produced by NARA. This use is replaced by the digital reproduction master product.
  • For Microfilm Publications beginning with the M, P. C or T prefix, this digital product can be output to an optical disc and/ or hard copy microfilm. See Microfilm Access product for details.
  • For Microfilm Publications beginning with the DN prefix, this digital product can be output to an optical disc only.
Rationale

Currently, the digital distribution copy options are generally the same for all still images regardless of the format of the original source material.

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