I found a series of MP3 Interval training workout files.
They are free and available at GETFITPOD.COM.
Great for High Intensity Interval Training workouts.
List of #84 - #125: podcast.getfitpod.com/rss2.aspx
AND #83 - #125 at: http://getfitpodpodcast.com/
(Scroll down to bottom left > Click Older Entries.
On any of the download links, Rifght-Click and
select (FireFox) "Save Link As"
select "(IE) "Save Target As".
A window will open asking where you want to save it,
just browse to whatever file on your computer keeps you music or
you can just load it into my documents.
It will then download.
With a good internet connection it’ll take about 5 minutes for it to download to your computer.
Once you have it on your computer you can play it on your computer, or
hook your MP3 player via usb, to the computer and just transfer the file.