>>>>Would not bet large sums against motivated adversary...
>>>>Strip the casing to see chips, identify memory (size should do it),with that: increase surface (pulverize best, drilling holes plus hammering ok, melt/burn remains
>>>
>>>I know that a 20lb hammer would do just as good job as a microwave :). But I need it to look like new :)
>>
>>Buy a new one of the same brand and model, format it and submit it to wherever it needs to be blank and new. Then return to the old one. Don't use force, use a larger hammer.
>
>Very good suggestion. But I don't trust this brand any more. I want to return this one and buy something more reputable.
>Thank you.

I put mine in a blender for a few seconds, needless to not much left - although these days the NSA might glue the dust back together somehow and take your fingerprint off it.