North American Product Classification System (NAPCS) Canada 2012 Version 1.0
- 481 - Published products, and recorded and unrecorded media
- 48133 - Unrecorded optical and magnetic media, and media not elsewhere specified
- 481331 - Unrecorded optical and magnetic media, and media not elsewhere classified
- 4813311 - Unrecorded optical and magnetic media, and media not elsewhere classified
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