View Issue Details

IDProjectCategoryView StatusLast Update
0019087MMW 5Tagging / organizing (properties / auto-tools)public2026-05-18 14:46
Reporterrusty Assigned To 
PriorityurgentSeverityfeatureReproducibilityalways
Status feedbackResolutionopen 
Product Version5.0.4 
Target Version2027 
Summary0019087: Duplicate Manager
DescriptionPlaceholder--This functionality needs to be specced.

Currently duplicate management is a very complex/manual process. MM should have a single tool that allows the user to:
- Easily find all duplicates via a combination of existing hash (exact duplicates) and artist/title matching + fingerprinting to help automate the process for finding duplicates that are either similar sounding (different versions) or are missing track metadata.
- Visually display possible duplicates in a manner that makes it obvious which items are possible duplicates (e.g. grouping them)
- Facilitate selection of which items to retain and which to reject
- Automatically recommend which files to retain and which to reject (e.g. via rules based on bitrate, volume leveling, etc.)
- Automatically recommend which metadata to retain (e.g. most recently updated track OR merge of metadata OR selection of metadata, TBD)
- Allow play history of deleted entries to be merged with the retained entries (e.g. last played should be the most recent date, played # should be the sum of all played # values).
- Allow playlists to be automatically updated with the retained entries

Additionally, it should be able to handle cases in which the duplicates actually exist AND/OR cases in which there are duplicate database entries (even if the tracks do not exist)

Note: usecases could involve:
- finding duplicates within a set of selected tracks
- finding whether a set of tracks already contains duplicates elsewhere in the library
TagsNo tags attached.
Fixed in build

Relationships

related to 0019083 feedbackrusty MMW 5 Media Properties: Changing Media Drive letter to existing Drive letter create duplicate 
related to 0016154 newpetr MMW 5 Use audio fingerprints to detect duplicates 
related to 0005800 new MMW v4 Duplicate Content Node Issues 
related to 0005498 new MMW v4 Duplate analysis should occur as a background process & be enabled by default 
related to 0000839 new MMW v4 Files to Edit: Duplicates -- add intelligence to exclude similar but different files 
related to 0000231 new MMW v4 Simplify Duplicate Tracks functionality 
related to 0022117 resolvedLudek MMW 5 CUE files are shown under 'Duplicate content' node 

Activities

Ludek

2026-05-18 14:25

developer   ~0081168

Last edited: 2026-05-18 14:44

What about to add 'Deduplicate' as the first item to the context menu for these nodes:

Files to Edit -> Duplicate Titles/Artists
Files to Edit -> Duplicate Titles
Files to Edit -> Duplicate Content

Selecting a node (or selection of files) -> right-click -> Deduplicate
would show dialog like this:

--------------------------------
Do you wish to remove 115 duplicates from your library?

(o) Delete from the database only
( ) Delete from the database and drive

[x] Create backup
[x] Retain files with higher bitrate / quality
[x] Join metadata (in case of conflict prefer those with newer timestamp)
--------------------------------


Left assigned to me for implementation, then wording can be adjusted by Rusty.