Opd2d is a program that allows you to convert to WAV or MP3 any sound reproduced by your PC without the need to be a sound engineer or an expert in computer science. Burning with Opd2d is also really easy. You just have to give it file name, limit the time of the recording (by file size or time) and click on burn.
This is a particularly useful program to record radio broadcasts over the Internet, IP telephony conversations, game sounds or any sound captured or reproduced by an external element (a microphone, record player, a cassette player, and so on.). Opd2d saves in WAV and MP3. Since its options you can select one of these two formats, and define quality sampling. In WAV format and supports sampling frequencies between 11025 to 44100Hz with 8 or 16 bits and MP3 ratios of 64 to 192bps.
This is a brilliant program which makes radio recording in particular a breeze.