I am testing the behavior of the catalog, especially if it stays ‘clean’ when removing photos from the catalog. To test this, I removed all photos from the catalog, so it should be empty. However, I noticed that the size of the database did not decrease. Optimizing the catalog initially did not decrease the catalog size. The catalog size did increase significantly after I applied optimizing the catalog again. However, the catalog was left with thousands of empty directories. Actually, I doubt if the ‘cleaning management’ of the catalog is sufficient. Will I not be left with a very ‘polluted’ catalog after some time of working, still storing the remnants and traces of removed photos?