Cassetro is National Audio’s Cassette Duplication Site

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The AUDIO CASSETTE TAPE is thriving at National Audio Company. With the manufacturing capacity to handle any size project, and the audio mastering expertise and graphics department to make it professional in every way, we are the primary source in the United States for the production of analog audio tape projects.

NOTE: National Audio Company Inc. respects the intellectual property rights of others and expects its customers to do the same.
It is very important to remember that reproduction of copyrighted material, without prior permission of the copyright owner, is illegal according to 17 U.S.C. Section 501. “Reproduction of copyright materials” applies not only to music, but also to any media that has been previously published including audio samples from video. It also includes visual design and photos not originated by the submitting designer.
If you want your order to be completed with no delays please make sure that your project does not contain any copyrighted audio or imagery before you fill out our order forms. The Intellectual Property Rights form is your word that you have the full right to have your project duplicated.

Now you can upload files for cassette duplication simply by clicking the link in the menu bar above! 

We’ve updated some promotional offers to help you save on producing your project. Call with any questions.


  • TShirt_SlideNational Audio T-Shirts
  • Remastering_SlideRe-mastering your music for Tape Duplication
  • NACBuilding_SlideGet to know National Audio Company
  • FunFacts_SlideFun Facts about cassette tapes
  • WhatsNew_SlideWhat's new? See Sam's Blog.
  • Cassingle_SlideRemember the Cassingle?
  • CassetteColor_SlideCassette Color Selection
  • PackageGallery_SlideGallery of Cassette Packaging
  • Band_Gallery_SlideGallery featuring events and bands
  • Cassette_Duplication_SlideGet started with cassette duplication.


Cassetro is a site made specifically to inform and serve record labels, bands and other audiophiles interested in the warmth and complexity available in the true audio sound of tape recordings.