Originally posted by Nathan
Hmm I don't understand the purpose
Well, suppose you really like this
video and you'd like to download it for offline access or to put it in your portable video player (mobile phone, MP4 player, etc).
However, you probably don't speak Japanese, so you can't understand a thing of what they're saying.
Since this video has English subtitles you can download them so that you can understand what they're saying even when you're not watching this video from YouTube