in order to prepare the switch from PSU version 3 to 4 I started the compression of both databases (catalog and thumbnail).
After a certain time I got the message "database or disk is full (0)".
I checked the filesystem of my Windows 10 (64bit) system:
- Drive C (Here are the catalog and thumbnail DB): 61 of 231 GB free
- Drive D (Here are the 152000 images): 91 of 931 GB free
- idimager.cat.db: 2.619.281 KB
- idimager.thumbs.db: 34.960.558
Thanks in advance