Because of websites like Last.FM and GrooveShark it is possible to find any song from any band or genre of any particular period in time. It is truly an ocean of songs that these 2 websites organized, and made available to anyone. Thank you LastFM and Grooveshark.
In order to record your favorite songs you will need an audio recorder application.
For the purposes of this tutorial I have used 1AVCapture because it is very practical, so much so that you can easily carry out work while you grab your favorite tunes.
1AVCapture records audio to WAV, WMA and MP3. I record my songs to MP3 because afterwards I can move the songs into my IPhone. You can choose any format you want.
1AVCapture costs money but you can record your songs for free for 21 days which is the limit of the trial period.