I only ship airmail for every cd and I ship these rates:
Canada Airmail - $4 and $2.50 additional items
USA Airmail - $6.50 and $2.50 additional items
Over Seas and any other country Airmail - $9 and $2.50 additional items
But I think I am going to up the over seas rate to $10 for the first item, just because rates have increased a bit.
I charge $3.50 for the 1st cd, $1.50 for each additional cd.
My international shipping rate is $5.50 for the 1st cd, $2.00 for each additional.
It seems to cover the price of the listing fee, shipping material, and shipping all costs.
The add'l cd discount I was giving wasn't enough to cover costs if an Int'l customer were to buy more than 4 cds. It's kind of wierd because if someone where to buy a lot of cds from me, the actual shipping costs gets close to matching the S&H price I charge them. The new USPS fucked up my last revision on my S&H prices. I am now offering a lesser price for Canadian buyers since eBay finally updated their S&H section for sellers. But hopefully my latest revisions is final until the prices change again.