Posted By:
don fluckingerIt costs more, but if you have concerns about a situation as outlined in the original post, you could go the route of taking the card to a local shipper such as The UPS Store and having them pack it.
They see the card, they can verify it was what you said, and depending on the shipper, there is sometimes additional third-party insurance on it.
While it's not as convenient, it's backup that would be welcome if the chips were down.
And before you diss their abilities to ship stuff safely, my local guys shipped a fragile Fender Rhodes electric piano to the Netherlands for me I sold on eBay and there were no complaints whatsoever.