De-duplication (“de-duping”) is the process of comparing electronic records based on their content and characteristics and removing duplicate records from the data set so that only one instance of an electronic record is produced when there two or more identical copies. De-duplicating a data set is a smart way to reduce volume and increase efficiencies

When collecting electronically stored information (“ESI”) from multiple custodians (i.e., various individuals/ different sources), there will necessarily be duplicative documents collected in the process.  In company-wide e-mail chains, for example, a message is sent to multiple recipients and stored within each recipient’s mailbox.  Consider the following: I send an email to two colleagues; a copy