8523.49.20 - For reproducing phenomena other than sound or image

This HTS category, 8523.49.20, encompasses optical media specifically designed for recording or reproducing phenomena that are neither sound nor image. This includes a wide range of data storage devices that operate optically, but are not intended for audio or video playback. Examples might include optical discs used for scientific data, specialized industrial recordings, or media used in diagnostic equipment where the recorded phenomena are non-auditory and non-visual.

Distinguishing this category from its siblings, 8523.49.30 covers optical media exclusively for sound reproduction. Therefore, if an optical medium is capable of reproducing sound, it would fall under that separate classification. Category 8523.49.20 is for those optical media where the recorded phenomena are distinct from sound, such as pure data sets or technical measurements.

Within this classification, two subcategories exist to further refine the nature of the recorded phenomena. Subcategory 8523.49.20.10 is designated for prepackaged software sold at retail for automatic data processing machines. The residual subcategory, 8523.49.20.20, covers all other optical media recording phenomena other than sound or image that do not meet the criteria for retail software.