As we’ve known for a while now, the Wii U will use piracy-fighting proprietary discs that will hold a capacity of 25GB – the same amount as a single-layer Blu-ray Disc used by the PlayStation 3 and much more than the 4.5GB single-layer DVDs that the Wii uses.

Sometimes we get so bogged down by all this technical jargon that we forget to look at the actual discs themselves. Well fortunately for us the folks over at engadget noticed something quite strange about them when unboxing a few games – they have a smooth 'rounded' edge.

From the close up images below you can clearly see the wondrously rounded edges of these sleek-looking Wii U discs. It’s as though each one has been lovingly hand-crafted by Nintendo itself and not just monotonously bulk-manufactured in a factory somewhere. Of course this is just a tiny detail and doesn't appear to have any practical use, but it’s a nice little touch by Nintendo who are not only striving to make unique games but also unique discs to put them on as well.

Check out the images for yourselves and let us know your thoughts in the comments below.