CMC Magnetics

CMC Magnetics Corporation
Native name	中環股份有限公司
Type	Public
Traded as	TWSE: 2323
ISIN	TW0002323003
Industry	Digital media
Founded	1978; 45 years ago (1978)
Headquarters	Taipei, Taiwan, ROC
Website	www.cmcnet.com.tw

CMC Magnetics Corporation (Chinese: 中環股份有限公司, Central Ring Public Limited Company) is a Taiwanese company that manufactures optical discs. Established in 1978, its factories are located in Taiwan (Memorex, HP, Philips, TDK, Maxell) and Hong Kong (Memorex, Philips). In December 2015, Taiyo Yuden, one of the inventors of the recordable CD and inventor of the original cyanine dye for CD-R, sold its optical disc brand and intellectual property to CMC Magnetics, ending its own production in Japan.^[1]

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Products

CMC produces CD and DVD storage media products, including CD-R, CD-RW, DVD-R/RW, DVD+R/RW, DVD-RAM, and floppy diskettes. CMC produces the Mr. Data line of optical media, which is or was commonly rebranded and sold by HP, Maxprint, Imation, Memorex, Philips, TDK, BenQ, Verbatim Life Series, Staples, Office Depot, Datamax, Optimum, Auchan and other OEM brands.

After Taiyo Yuden sold its optical disc manufacturing business, CMC started the CMC Pro line of optical media, a new line of optical media based on the Taiyo Yuden technology that CMC acquired after Taiyo Yuden left the optical disc market.^[2]

CMC in the UK and Ireland

Europa Magnetics Corporation Limited, a CMC group company, operated floppy disk, CD-ROM and CD-R production facilities in Cramlington, Northumberland, UK in the 2000s.^[3]^[4]

CMC also operated a CD-R production plant, MC Infonics in Limerick (Republic of Ireland), which it had previously acquired from Mitsubishi Chemical/Verbatim.^[5]