ListenToYouTube.com is ( yet another but sounds better) a service which allows you to convert your Favorite Youtube video and into MP3 format ready to download on your hard drive. We have seen this kind of service which converted online videos to flv,3gp,avi,mov,mp3 formats or even allowed to download video from online flash players but this service is

• Very clear on how it works and it is faster than the previous ones.
• Its a iTunes compatible converter as it adds an Xing header to the MP3 file

Here is direct qoute from their About Page

The way the site works is this: Once a user enters the YouTube URL, the software retrieves the FLV file (flash video) from YouTube, saving it to our server. We approximate the time needed to transfer the file, and give the user a countdown, as well as showing them a thumbnail image of the video, also retrieved from YouTube.

Then, the YouTube video file is parsed one byte at a time by our PHP MP3 extractor class. We add an Xing header to the MP3 file to alleviate the audio duration errors given by the iTunes player (and a few others). Finally, we present the user with a link to download the MP3 file.

The time needed to retrieve the FLV file depends on the upload speed of the YouTube servers, but once we have the flash video, it takes our software less than 3 seconds to extract the mp3 audio.