Our preservation practices combine local backup, nightly and monthly server replication and use of cloud storage services like Amazon Glacier and S3. Content is typically divided into preservation and presentation copies and monitored via routine checksums.
When submitting files to the Academic Commons, consider using one of the supported and recommended formats. The longer table below offers a more complete list of file formats and the level of preservation support that they receive.
Supported: The format is recognized. We are reasonably confident that files in this format can be migrated to a future format or standard. This format is recommended whenever it is appropriate for your data.
Known: The format is recognized. We promise to preserve the bitstream as-is. We will consider migrating these files to future formats if it can be done efficiently and effectively.
Unknown: Any file in an unknown format is by definition one that cannot be migrated to a future format. The Academic Commons will preserve the bitstream as-is.
Academic Commons File Support Levels
|AIFF||aiff, aif, aifc||supported|
|MPEG Audio||mpa, abs, mpeg||supported|
|DWG (Autocad drawing format)||known|
|DXF (Autocad drawing exchange format)||known|
|FMP3 (Filemaker Pro)||fm||known|
|GIS ESRI Shape File||shp dbf||known|
|GIS ESRI Export formats||e00||known|
|Microsoft Project||mpp, mpx, mpd||known|
|Postscript||ps, eps, ai||supported|
|SDTS (spatial data trans stand)||known|
|Text (US-ASCII, UTF-8)|
|GIS GML (xml)||known|
|Rich Text Format||rtf||supported|
|MPEG-2 / MPEG-4 AVC||mpeg, mpg, mpe, mp4||supported|
|Video Quicktime||mov, qt||known|
|Unknown||(anything not listed)||unknown|
If you have questions regarding these formats please contact the Digital Production Lab coordinator Sara Amato. To read more about the digital media preservation, see the Library of Congress Digital Preservation page, and their Sustainability of Digital Formats information.