But it's not like most portable freeware we've tried. As the name indicates, Zortam MP3 Media Studio Portable is completely portable, and it's freeware, too.
It rips and burns CDs, creates playlists and lyrics albums in HTML, and processes files in batches. Zortam MP3 Media Studio Portable lets you organize your MP3s into libraries and find, add, and edit MP3 tags, including both ID3v1 and ID3v2 tags, song lyrics, album cover art, visualizations, and more.