Here is about how to convert Youtube to MP3!

1. How to Convert Youtube to MP3?
As a YouTube fan, many Mac users would like to save videos
locally on the computer or convert music videos into MP3s and
listen on music players. YouTube to MP3 Converter for Mac
makes this need possible by providing the function of
downloading and converting audio tracks of YouTube videos
into MP3, WAV or MP2 format in only one-step.
YouTube to MP3 for Mac Converter allows you to convert all
kinds of video and audio formats from Youtube to MP3 audio
format on Mac OS X. This Youtube to MP3 Mac program has
two different versions, named as MP3 Converter for Windows
and MP3 Converter for Mac. Just free download the one which
you need to have a try.
YouTube accepts many different file formats:
WebM video – Vp8 video codec and Vorbis Audio codecs;
MPEG4, 3GPP and MOV files – Typically supporting h264,
mpeg4 video codecs, and AAC audio codec; .
AVI video – Many cameras output this format – typically the
video codec is MJPEG and audio is PCM;

2. MPEGPS video – Typically supporting MPEG2 video codec
and MP2 audio;
WMV video; .FLV video – Adobe-FLV1 video codec, MP3
audio.
Step by Step on Converting Youtube to MP3 Mac OS X
Note: The following step by step guide will show you how to
convert Youtube to MP3 on Mac. It can be applied to Windows
version also. Both Windows and Mac users can follow it to
perform the task.
Step1: Install and Run the Youtube to MP3 Audio Converter
Mac Tool on your Mac.
Step2: Click “Add Files” to Add Youtube video to audio Files to
this Youtube to MP3 Software.

3. Step3: Set the output formats as MP3 from the drop-down list
of Convert To.
Step4: Click the Start button to begin converting Youtube to
MP3 Mac. After the conversion, you can upload the converted
Youtube files to all MP3 Player with ease.
Now, That is all about convert Youtube to MP3 on Mac os x!