This recording includes both soprano 1 and soprano 2 (the two sing in unison a lot of the time) and both Paris and Dresden versions. As Paris and Dresden only vary in act 1, separate Dresden files for act 1 are included. For ease of use, both sop 1 and sop 2 recordings are complete for the Paris version. Because so much material is shared, the recording is offered at a special price, considerably less than that of the total material length.