2.5 In the instant case, the data are images of drawings and designs intended to be used for engineering projects. Such engineering drawings and designs do not provide instructions for the computer hardware to perform. At best, the said drawings and designs can be said to be the by-products and oµtputs of the computer software, which generate the designs and drawings. Therefore, such engineering drawings or designs data in a CD cannot be placed in the catego,.Y of the term 'software'. The engineering drawings and designs contained in a CD ROM would not be covered ·under Heading 85.24 of the Tariff. Such a case also does not fall under the sub-heading 8524.99, i.e., "Other", as the same must be relatable to all those which are said to be under the Main Heading 85.24. Sub-Heading 8524.99 includes, inter alia, recorded media (excluding discs for laser reading systems, magnetic tapes and cards incorporating a magnetic stripe) for reproducing representations of sound or images in addition to instructions and data, recorded in a machine readable binary form and capable of being manipulated or providing interactivity to a user, by means of an automatic data processing machine. The Harmonious System of Nomenclature (HSN), which is a safe guide for classification supports such a view. [Paras 20, 21 and 22] [92-H; 93-A-F]