Now you mention it, it does look like a rebadged version of a SanDisk. Oh dear. Looks like I'm going for the Kingston 512 Mb SD disk instead. Thanks. To be fair, the site does allow for customer feedback and queries. So I enquired if it would survive a linux rather than a Fat format. But they didn't know.
Edit: Oh heck! Looks like the Kingstons have gone!
Well, will keep watching the link that started this post.