 The contract conditions were vague and " clearly unbalanced to disfavor the customer " . The retroactive changes to the  DRM conditions and the incompatibility with other music players are the major points of concern.
<fluency>  The contract conditions were vague and " clearly unbalanced to disfavor the customer " . The retroactive changes to the  DRM conditions and the incompatibility with other music players are the major points of concern.
 The contract conditions were vague and clearly unbalanced to disfavor the customer " . The retroactive changes to the DRM conditions and the incompatibility with other music players are the major points of concern.