Double albums track numbering

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I usually have all the tracks of a double album in one folder with the tracks' file names of disc 1 prefixed with an A and disc 2 with B, respectively. Accordingly, the tracks of disc 1 have the id3 tag type "CD" ("Part") set to 01, disc 2 with 02, respectively but each of the discs' tracks have their own numbering starting from 01. Yet, the track numbers in the metadata MinimServer reports is continuous, i.e. the tracks of disc 2 start at the number of the last track on disc 1 plus one. On the other hand, if the "CD" id3 tag of the discs' files is empty, MinimServer does "the right thing", i.e. display the track numbers as they are recorded in the id3 tags, in my case disc 2 tracks starting from 01 again (also like displayed on the CD cover).

Can this be changed without having to edit the id3 tags, that is, clearing the "CD" fields?