Please be advised that the Mp3, m4a, and WAV file music licenses that we lease on this website (www.beatsniper.com) have not been professionally processed and mastered prior to uploading.  Once purchased and downloaded it is the buyer's responsibility to have their project mixed and mastered by a proper and creditable audio engineer in a professional recording studio. The Unlimited Non-Exclusive and the Exclusive Licenses are typically a better value for the money because of the extended user rights and tracked out stems associated with the purchase. This usually allows for more volume level controls when the tracks are being professionally mixed.  Mp3s are great for song rehearshing, making demos, and writing songs to and offer a reduction in file size when uploading, but they are not the music industry standard when it comes to creating a professional music album. WAV file formats are huge in file size but they are of better sound quality than a Mp3 file. The m4a audio files we added for the MAC OS users.  All of our tracked out stems are submitted as WAV files. This media platform and none of the producers that upload beats to beatsniper.com does not guarantee succcess, airplay, streams, record deals, placement, sales, etc.  All of our download sale transactions are processed through PayPal. For any questions or concrens email us at info@beatsniper.com. Please review our terms of use and be advised that they are subject to change. We wish you the best of luck with your artistic endeavors. Stay positive, work hard, and keep creating. Now let's get to work!