A podcast is an audio file that you download from the Internet. After you download it, you can listen to it on your computer or on an MP3/portable music player (for example, an iPod or iRiver). You can subscribe to a podcast so that it is delivered to you automatically each day, just like a newspaper.btw#1: do not have to subscribe to listen...
btw#2: http://www.bbc.co.uk/ is also a good resource for audio-practicing )))
