I'd be interested to hear from any sellers who regularly ship CDs to Europe (and other parts overseas). To the U.S. Light Packet seems just fine for most CDs, since the cost isn't far off lettermail. But to Europe, there's a somewhat bigger cost gap.
My main interest is whether sellers using lettermail for shipping CDs to Europe and overseas have run into any problems (e.g. Post Office refusing these items because they are not actually letter mail, faster/slower delivery times than Light Packet, etc.). Light Packet to Europe is convenient because it can be done through Paypal, but I can save almost $1.00 on every such item using ordinary lettermail/airmail.
Thanks for your input!