Shipping costs are determined by italian post website.
For 1 or 2 cds with plastic jewel cases (shipping costs do not change), "fino a 250 grammi" (until 250 grams).
Registered:
13.15 euro/US$ for EU countries, for overseas it's 17.05 euro (rounded
to 17$). Priority/Normal type of shipping are cheaper but more
risky so
better avoid.
From 3 to 4 cds (with two cds in a single case) will
be 14.75 euro for EU, and 19.30 euro (rounded to 19$) for overseas, for
more than 4 cds (5, 6 etc.) shipping will be free, no matter how much is
the price overall.