I’m sure that in a previous life I’ve sure I’ve mentioned Replay Music the audio recording service but now there’s a new version out there and its just got even better.
Now before I begin I do not condone the acquisition of copyrighted material but I do believe that there are some occasions when a service like Replay Music is necessary.

If you’re not familiar with the past three incarnations of Replay Music then basically it’s a program that records audio streams that come through your PC and converts them to MP3 to keep for posterity.
One of it’s main functions (and please refer to my disclaimer) is that it can pick up streams from services such as Spotify. In older versions you had to tag an edit track information manually but via some sort of black magic it will now automatically pull track an album information from and online database as well as porting it straight into programs such as iTunes and Windows Media player.
It’s dead simple to use and no matter what audio stream is coming through your sound card whether it be YouTube, online radio it will nap it.
There’s even a free trial and the full license is actually less than 13 quid which is backed up with a 30 day money back guarantee. Might be worth a look.