Hi Roman
I couldn't create a dat by dir2dat option.
97 zipped (store option) Neogeo CD files.
In dir2dat selected those options :
- Lowercase Entries
- Scan subfolders
- Add Sha1
- Match tagdata.

I tried also with all romsets unzipped in each dir.

In both actions ClrMame 3.53a din't create requested dat in
assigned Dat-file dir

Bye