YouTube to MP3 Converter is a program designed to download music in MP3 format from online video services like YouTube, Vimeo, Soundcloud, and Dailymotion so that you can store your favorite songs on your computer. Just drag and drop or copy and paste the video's URL into the program interface to add it to the queue. Push the corresponding button, and all of the songs in the queue will begin to download.
The resulting tracks are saved in the output folder without needing any conversion, and therefore maintain their quality. The default downloading format is MP3, but you can change that to M4A or OGG if you want to.
YouTube to MP3 Converter automatically detects the artist name and video title and will save your file with those tags, which you can also change. And, it's capable of importing your music into iTunes.