Yes you need to get permission from the copyright holder of the music since you are going to be taking their work, repacking it and selling it for a profit. You can simply write to the copyright holder (say for example, BMG Music) and inform them of your intended use. Ask them for the permission. They will write back and tell you what their terms are going to be. If you are serious about this endeavor, then you should consult with an intellectual property attorney near you. After all, if your project becomes a big money maker for you, you don't want to be paying the copyright holder more money then you need to. How much is too much is the question that your attorney will help you negotiate. You can find one at
attorneypages
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Mark B. Replogle