The first method is using a website to download and convert youtube video on mac to ipod or powerpoint for free, Of course, you can also convert other media videos. This is good for you when you only have one file to convert or you can't install the programs necessary for conversion. My favorite is zamzar converter.
You don't even need to download the video file to your computer. Enter the URL of the video to the box, choose the format you want to convert youtube videos to (iPod accepts mp4 video. So choose the format 'mp4'), and Enter your email address , then click 'convert'. The output file will be sent to your mailbox after the conversion.
Another free online converter I like is media convert. But you can't convert big video files using free online converters. It is up to 100MB. And the quality of the output files is so so.
