tubefire - convert YouTube videos to portable media formats online

I've lost count of how many times I've introduced a Japanese app or mashup related to YouTube, but one thing is certain: this service is indeed quite practical. With this service, you can convert any video on YouTube into four portable media formats: mp3, mp4, 3gp, and 3g2. In addition, it offers a video screenshot feature, which simply means that after you submit a YouTube video link, the server will provide three screenshots from different points in the video playback process. This allows you to get a rough idea of the video content without having to wait for it to play. I think this feature is really quite useful.