Widely used. No need to translate. If it's ok, change others if there is (I dont' think)

This term might be more common to users and also matches what the
Firefox interactions say.

Now that we wrote a common scenario for DVDs and VMs, we only have one
specific scenario for these operating systems, so we can simplify the
CSS tricks a bit.

At the moment we are not considering having a replacement of the
/download page, so since we are renaming this file anyway let's move it
where it belongs: next to the other steps.