Just a note on the page you recommend:
 http://www.digitaldialects.com/Polish.htm

I've had a brief look at just a few exercises there. Be aware that they are read by a non-native or by a Pole who spent a long time abroad. For a foreigner his pronunciation is excellent. I suspect he's Polish though, because of things like nasal "o" instead of nasal "e" in "łabędź", which is considered incorrect, but typical rather of poles.

Me, too, GBO.
I just found the sounds, which go with the words.
It's a great help.
Letters on a piece of paper don't tell me how to say MĄŻ.

thank you very much GBO. The game is a very good reminder for beginners like me.

 http://www.digitaldialects.com/Polish.htm

Its a game for beginners :)

the main cases in polish kasia plz