Dupin Icon

Using the Criteria Matrix

The Criteria Matrix tells Dupin which track tags to consider when evaluating tracks as duplicates of each other; it is how you define "duplicateness". This provides a powerful yet flexible way to discover various types of duplicate tracks.

Criteria Matrix

Since the definition of "duplicateness" can vary from user to user or situation to situation, Dupin leaves it to the user to define it.

To Select Criteria:

"Filename" as Criteria

Tracks that are duplicates of each other may not have the same filename. If "Filename" is selected as Criteria Dupin would not consider these tracks as duplicates:

...and so on. Use this setting thoughtfully.

"Time Criteria matches +/- seconds" in Preferences:

Very large iTunes libraries (tens of thousands of tracks) can be cumbersome for Dupin to work with. It may be quicker to work with batches of tracks rather than an entire iTunes library's worth. You can limit the number of Dupe Groups Dupin returns using the "Limit Dupe Groups to" popup.

Limit Dupes Groups to:

You may have to experiment with different settings in the Criteria Matrix in order to obtain desirable results. But what's important is that the Criteria Matrix compels you to decide what a duplicate is.

See also

bullet Basic Operations
bullet Other Tasks and Commands