It looks like Skydrive was a poor choice for an alternate hosting site. Less than 2 days after I made mirrored versions of all of the sound files available via Skydrive, I noticed that none of the mirror links were working at all; furthermore, I was unable to download any of my own files from Skydrive. So today I made the decision to try Megaupload as the host for my mirrored files. Hopefully this will turn out to be a better choice; as always, if anything on the site or this blog is giving you problems, please don't hesitate to contact me.
Also, I will try to get a new sound up by the end of the week. Thank you for your patience!
[UPDATE (2009-08-26)]: The ads on Megaupload were driving me nuts, so as of today I am using Mediafire as a mirror host.