well, i'm not an expert, but the 'j' in
Judith would be pronouned like the soft 'g' in Dutch (if you know what it mean; it is hard to explain on internet, you'll have to hear it to understand when you didn't understand before, argh)
so it would be gou-DITH ('dith' like the ending in Madrid (= mah-DRID)) with a soft 'g' (i think argh has a soft 'g' but i'm not sure how to pronounce 'argh')