To use a new source file after downloading you should unpack it and put into
iRadioNet installation directory
(C:\Program Files\iRadioNet by default)
Then click on the List button in the Options Dialog to select and open the new db list.
NB.
If you gathered an interesting collection of on-line stream stations while
using iRadioNet and would like to share it with other user,
you can send your database file to me
and I promise to put it below (please provide a short description of your collection if it is possible).
How to install a new db file