That doesn't change the fact that you have to notice the receiver of a copy about the license terms.
So, you can create a own package, like a zip file, including the GPL text and maybe also the updated readme and distribute it however you like under the terms of the GPLv2. However, the files are already
available as ogg so that you can playback them ingame. And they will included in the next release or as an additional package.
I may sound like a nitpicker but license is license.
And this site doesn't even inform about the license.
However, enough licenses.
It's may be the best if you remove the links and create a own package, like described above.
Or you just use the data from our trunk

We all have the same heaven, but not the same horizon.