FAQs

Frequently Asked Questions

Imprinting is the process of printing your artwork, in a single ink color, directly on any of our color cassette shells. The imprint ink is permanently fixed on the shell using NAC's commercial printing presses with UV dryers for a professional result. Laser printed paper labels are also an option for colorful or complex designs. Labels can be multi-color and full bleed designs. There are separate templates for imprints and for labels. Please use the correct one for your designs.
National Audio can work with almost any kind of media or digital audio file as the original for duplication. The most professional quality is achieved if you send .wav files that sound exactly as you like. The audio engineers at NAC make slight adjustments to make your recording sound its best on cassette tape. For more specific information click here.
Two halves of a plastic cassette shell are normally joined in one of two ways, by screws or sonic welding. Sonic refers to a welding method often used for plastics. Ultrasonic welding creates a solid-state weld using high-frequency acoustic vibrations applied to plastics held together under pressure. No connectors, soldering materials or adhesives are required. Although shells screwed together can be repaired more easily, welded shells are popular because they are rigid, professional in appearance, and a bit more reliable than a shell joined together at a few selective points. Professional music releases are generally recorded on sonic shells.
Within a few days of the receipt of your project forms and files National Audio will email you a PayPal invoice which can be paid with PayPal or a major credit card. You must pay the invoice before we begin work on your project.
The letter refers to the shape seen when you view the edge of the insert. Its folded shape looks like a J, an O, or a U. J-Cards and U-Cards may include extra panels folded inside.
The overall thickness of the tape itself dictates how much of it can fit inside a cassette shell. The plastic film substrate + the binder + the magnetic oxide surface = the tape thickness. National Audio Company has only recently found the proper type of plastic substrate of a thickness to make (up to) 90 minute cassettes. Since NAC began manufacturing magnetic tape until now only a substrate to make 64 minute or shorter tape had been available. Any longer cassettes available anywhere (that we know of) have been made with older stock, not newly manufactured tape.