For Windows only.
I've used a program called Replay Radio for a long while to record
Internet radio. This is a US product and lets you set up a schedule
to allow recording Internet streamed audio from your PC or laptop sound
card. You need to have Real player and Media Player installed in some
cases, for Replay Radio to be able to access the stream and record it.
The key things you need for Replay Radio to work are:
1. knowing the URL of the audio stream
2. having both Real player and Media player installed
3. knowing the time when the program you want to record comes on the air
and goes off the air.
You will have to 'play around' with Replay Radio to learn how to use it.
I'm not an employee of the company that makes this software, but I've used
it since 2006, and find it very useful for recording Internet radio that
is not podcast.
http://applian.com/replay-av/record-internet-radio.htmlis where you can download a free trial version---caveat: it will only record
5 minutes of audio.
It will take some playing around to understand how to use this, but once
you get it in hand, it's easy and very useful. I suggest you work with
the 'audio I'm hearing now' feature--which means audio coming off your
speakers/sound card.
Just an idea for those of you who are into listening to Internet radio.
This sw will only record serially---you cannot record multiple shows that
air at the same time.