Pursuant to the Federal Rules of Civil Procedure, "a responding party must produce the information in a form or forms in which it is ordinarily maintained or in a form or forms that are reasonably usable." [1]
There are four basic forms of production for electonically stored information:
Paper;
Quasi-paper, which is essentially paper in electronic form, such as .tif files and .pdf files, often with associated metadata and full text;
Quasi-native form, such as an IBM AS400 database produced as an ASCII, comma-delimited file with associated file and field structural information; and
Native, where the electronic information is produced as it is maintained and used.
Footnotes
^ For current case law about the form of production, see the Federal Judicial Center at http://www.fjc.gov – Materials on Electronic Discovery; Annotated Bibliography by Ken Withers.