CD shipping & handling

Are there anybody there experienced with international shipping and handling for their self-released CD's?

I'm planning to press Digipak CD's for a future release and do all the s&h myself via bandcamp, but I don't want to have them break when shipped overseas. I'm a complete noob at this, there's an option with the pressing plant to add cellophane wrapping, but I don't know if that's a safe bet, are there more things I should consider? Do you package the CD and case ceparately, encase it in cardboard or something? Class 1-letters typically have some form of bubble wrap with the post office but I hear bending can be an issue.

Secondly, what kind of weights do you deal with? I hear digipaks are around 100g, but the pressing plant claims they're 300g a piece (I assume for a 4 panel with plastic, CD inside and all that jazz), together with further protection this could rise rapidly and I don't want to ramp up shipping costs too much.

I've tried googling my way around but haven't found enough details, it's just a mess of pressing plant ads and people discussing their favorite japanese expert jewel cases.

Bump for added interest, as I'm in the same situation but hadn't thought that far ahead yet...

Just a quick update, I found what looks like a good packaging option, the Mail Lite C/0:

http://www.viking-direct.co.uk/a/pb/Sealed-Air-Mail-Lite-Bubble-Bags-White-C-0-150x210mm-100-Per-Pack/id=BL0/

This is specifically sized for CD's and the likes, at 150x210mm it has adequate space for one-off jewel cases and digipaks. Packages start at quantities of 100 but I found a cheap dealer in my country.

Those do the job pretty well I find. You do risk the problem of bending in the post, but sadly unless you have everything taped up in really thick card, that's a risk you have to take. There are card options, such as the ones Amazon etc. use, although I'm not sure where you can buy those. But I've never had a digipak come damaged in one of the Mail Lite envelopes. A cheap way of reinforcing it is to use thin card, such as you get on a cereal box, which does a reasonable job at protecting it from any excess bashing.