Thanks everyone! I already have ultimatebootcd, I added ghost to it once, and it is great as you say, but did not know it had wiping tools! I might try all wipe programs suggested
But with Migros, how sure are we that they don't dispose of the stuff as waste? I mean, there are millions to be earned there right? I recall some British companies that were supposed to collect recycled waste ended up dumping it all in Africa or India and it was a big scandal.
Now perhaps the governmental control here is stronger, but still