May there are some ways you know to download Video or MP3 from Myspace, YouTube, Imeem and Pandora, but there is another easy way to download them fastly, especially when you found some music, video,exe,zip etc, you can use this softwear to download. The wear is Orbit Downloader.
(In fact, if you want to download mp3 or video, the easiest way is after you have listened or watched, you can find the mp3 or video on your computer, just open this file: C:\Documents and Settings\Administrator\Local Settings\Temporary Internet Files ——--C:\Documents and Settings\username\Local Settings\Temporary Internet Files)