Digital Repository Serrvice Policcy on Format Support and Preservation
n Our goal iis to provide aas much supp
port for your content as poossible. Our p
preservation policy states that: 

Evvery file depo
osited in the rrepository will be identifia ble and retrieevable in the future To
o the extent p
possible, we w
will take all necessary acti ons to make your files usaable in the futture Given the
e broad range of software aapplications b
being used att Northeasterrn, and the reesulting file formats th
hat we mightt expect to recceive on depo
osit, we will nnot be able to
o provide the same level o
of support to
o every file. TTo help you b
better predictt your supporrt and to help
p guide you ass you preparee files for deposit, we have arranged file formats into tthree categorries: 1. Su
upported We w
will take all reaasonable step
ps to ensure tthat files in thhese formats remain usablle for the longg‐
term. These action
ns may includ
de migration aand/or emulaation. We will continue to
o monitor theese formaats to better p
predict imporrtant lifecycle
e events. We encourage su
ubmission in tthese formats whenever possible
e. 2. Managed M
Files in this category are of know
wn formats, b
but the formaats are generrally proprietaary in nature and we may not be able to ensure lo
ong‐term usaability of the ccontent. As w
we learn more about form
mats in this caategory, it is possible that a format mayy move from “Managed” tto “Supported”. When posssible howe
ever, a supporrted file format alternative
e (PDF insteadd of MS Word
d, for example) should be chose
en for depositt. 3. Housed These
e are files for which the file
e format is un
nknown. We will preservee the file as deeposited but will be un
nable to take aany actions to
o guarantee tthe files usab ility. Audio Files Extension Format Notes Level aif, aiff AIFF If possible, file should be saved in WAV format before depositing Supported mp3 MPEG 1/2, Audio Layer 3 Managed ra, ram, rm Real Audio Managed wav WAV This is the preferred archival format for audio Supported Image Files Extension Format Notes Level bmp Bitmap Supported gif GIF Supported jpg, jpeg JPEG Supported jp2 JPEG2000 When possible, these files should be saved with no compression. Supported png PNG Supported TIFF This is the preferred archival format for images; these files should be saved with no compression. Supported tif, tiff Text and Office Files Extension Format Notes Level csv Comma Separated Values Text Supported css CSS Supported dtd DTD Supported htm, html HTML When possible, user should deposit corresponding CSS and images Supported xls, xlsx Microsoft Excel Managed ppt, pptx Microsoft PowerPoint Managed doc, docx Microsoft Word When possible, user should convert to PDF before depositing Managed pdf PDF PDF/A is the preferred version of PDF Managed eps, ps Postscript Supported rtf RTF Supported asc, dat, tab, txt Text Supported xml XML When possible, user should deposit corresponding DTD or Schema Supported xsd XML Schema Supported xsl XSL Supported Video Files Extension Format Notes Level wmv Microsoft Windows Video Managed mp4 MPEG 4 Video Managed mov QuickTime Video Managed qt QuickTime Video Managed avi Video for Windows Managed