You remove "ube" from "tube" in the url, hit "return," and then it takes you to a screen to download. I selected wav as the output format. It allows you to download up to three tracks in an hour.
Everything downloads properly. Each file looks, sounds, and acts like any other wav file, but the time for each reads 6 hours, 12 minutes, and 50 seconds, regardless of length. I just listened to all 10 tracks in a playlist, and they collectively clock in at 28 minutes.
Weird.