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The IPFW library primarily relies upon the Dublin Core Metadata Best Practices Version 2.1, Digital Audio Best Practices Version 2.0 and the Indiana State Library’s Indiana Memory Project Guidelines for Digital Projects. Following are the minimum technical standards used for mDON digital files.
Originals as Text-based, Photographs, Graphic Materials
| | Archive |
Thumbnail |
|---|
| Digital Format | Tagged Image File Format | Joint Photographic Experts Group | | Extension | .tif | .jpg |
| bit Depth |
8-bit Grayscale; 24-bit Color | 8-bit Grayscale; 24-bit Color | | Spatial Resolution | 400 ppi | 130 ppi | | Spatial Dimensions | 100% of original | 130 pixels across the long dimension |
Originals a Map
| |
Archive |
Thumbnail |
| Digital Format |
Tagged Image File Format |
Joint Photographic Experts Group |
| Extension |
.tif |
.jpg |
| bit depth |
8-bit Grayscale; 24-bit Color |
8-bit Grayscale; 24-bit Color |
| Spatial Resolution |
400 ppi |
130 ppi |
| Spatial Dimensions |
100% of original |
130 pixels across the long dimension |
Originals a Audio
| Digital Audio Format |
Windows Media Audio or Waveform |
| Extension |
.wma or .wav |
| Sample Rate |
44.1 kHz |
| bit depth |
16-bit |
Original Video
| Video Format |
MPEG-2 video |
< 9 Mbps |
| Digital Format |
Audio Video Interleave or Windows Media Video |
|
| Extension |
.avi or .wmv |
|
| Resolution |
720x480 pixels |
|
| Frame Rate |
30 frames/second |
|
| Data rate |
4:2:2 chrominance format |
|
| Audio Sampling Frequency |
48 kHz |
|
| Digitization Specification |
Pioneer PRV-LX1 DVD Recorder |
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