Issue with duplicates when creating playlist

[simoncn]

This is happening because you are adding the album from the contents of the Work index entry. Kinsky is browsing the subtree under the index entry you have added and is treating each browsing path as a separate file to be played.

For example, for the work "Suite española pour Piano No 1 B. 7 Op. 47 (1886)" these browsing paths are as follows:

2 albums > Albéniz - Iberia [Requejo] > Isaac Albéniz (1860-1909) : Suite española pour Piano No 1 B. 7 Op. 47 (1886)

2 albums > Música Española - Música Para Piano II [Larrocha] > Isaac Albéniz (1860-1909) : Suite española pour Piano No 1 B. 7 Op. 47 (1886)

2 articles > Isaac Albéniz (1860-1909) : Suite española pour Piano No 1 B. 7 Op. 47 (1886)

2 articles > Isaac Albéniz (1860-1909) : Suite española pour Piano No 1 B. 7 Op. 47 (1886)

Artiste > Larrocha, Alicia de [Piano] > Isaac Albéniz (1860-1909) : Suite española pour Piano No 1 B. 7 Op. 47 (1886)

Artiste > Requejo, Ricardo [Piano] > Isaac Albéniz (1860-1909) : Suite española pour Piano No 1 B. 7 Op. 47 (1886)

Pianist > Requejo, Ricardo > Isaac Albéniz (1860-1909) : Suite española pour Piano No 1 B. 7 Op. 47 (1886)

Pianist > [Inconnu] > Isaac Albéniz (1860-1909) : Suite española pour Piano No 1 B. 7 Op. 47 (1886)

Kinsky follows all these browsing paths and and adds all files from all paths to the playlist. Most UPnP control points do the same thing. MinimServer can't do anything to prevent the control point from doing this. Some control points (for example, BubbleUPnP) are able to detect and remove duplicates.

This control point behaviour dates back to the early days of UPnP where each file appeared only once in the browsing hierarchy with a unique browsing path to the file. MinimServer allows a file to be found using multiple browsing paths, which can result in this problem.

The solution is to always use a selection underneath the "n albums" or "n articles" indexes to add files to the playlist. If you do this, there will be no duplicates.