I am using MatLab 2012a for the Mac. In order to evaluate my mp3 audio data I downloaded the mp3 read and write from the file exchange. I can read the data in, but when I plot the variable "Y", the computer completely grinds to a holt and then becomes extremely sluggish. So much that you can't do anything with the data except close the figure. I've made sure all the appropriate mp3 encoders are within the directory, etc. I can't seem to find anyone else having the same problem. I have 8gb of ram and a dual core processor.