The quality of a purchased track is not good.

Music Worx try to deliver tracks on high quality standarts from big labels around the globe.
We do not modify or revise any files. The labels provide us with qualitative WAV files that should meet the quality standards. Music is fundamentally different, created by different producers. It is expected that releases will be professionally mastered just because they mostly have the appropriate resources. Since we represent many independent artists, quality may not always be assured.