The same as everyone else's manual
"I mean, what was wrong with just sticking a slip of paper in saying manuals can be downloaded from the web."
Obviously (1) you may be depending on this device to get to "the web", and (2) what process puts a product manual on the web that is better than can be put in the box?
In the case of the memory device, the operations that are described seem to be exactly the same as for all other USB memory devices, leaving the question: why didn't we get a copy of sromeone else's good manual? And the answer, I suppose: copyright.
If I remember, I'll check for bad or "gratuitous Engrish" on recently purchased packaging or manuals. Stuff from Maplin is probably fruitful. And Japanese regards "Roman" script as eleglantly ornamental, but without being particular as to meaning.
English-language terms can be converted to Japanese merely by saying "gee" after the rest of the word. And, come to think, to Hindi as well. Hmm-gee.