BBC Radio 1 uses two stream formats:
1. rtmp:// .flv audio only stream
2. rtsp:// .ra audio stream

You can download/record/capture/save/rip both:

1. There are several streaming media rippers and audio stream rippers that can download/capture/rip/save rtsp:// .ra streams. The only program that can capture packets from Real Player is WM Recorder. WM Recorder supports scheduling, which might be very useful when downloading/ripping/capturing/saving audio streams.
   Note: Please use Real Player 10 with WM Recorder.
2. There are several RTMP Flash stream recorders that you can use. Jaksta is the only RTMP capture software that I know. It can capture packets coming to your flash player, so you can listen and capture BBC Radio 1 at the same time without creating two separate threads for this. Plus Jaksta supports scheduling.

Please note that the above mentioned software doesn't allow you to split and tag songs from BBC Radio 1 automatically.