This application does exactly what its name suggests: it helps you convert videos downloaded from YouTube to formats compatible with iPod devices. You can work with this utility whenever you wish to save clips from the aforementioned video sharing website to your iPod for offline playback.
4Media YouTube to iPod Converter features an integrated browser tool that helps you find the clips you'd like to download and convert. You can log in to your YouTube account directly from the app's interface and fetch as many videos as you want.
The app supports various output formats (compatible with iPod as well as other media formats), allows you to download and convert multiple videos at the same time, and provides you with quality results. What's more, the utility takes a small amount of time to offer you the output files you need.
The one thing that doesn't seem to work is the video player from the browser (it displays a blank screen when playing videos).
Nevertheless, this program is designed to enjoy its download and conversion capabilities and not playing YouTube videos ones. So, I'd say it's worth buying this application for your Mac as it offers quality output files and comes with a very reasonable price.