Cactus Data Shield

Cactus Data Shield (CDS) is a form of CD/DVD copy protection for audio compact discs developed by Israeli company Midbar Technologies.[1] It has been used extensively by EMI (subsequently acquired by Sony Music), BMG and their subsidiaries. CDS relies on two components: Erroneous Disc Navigation and Data Corruption.

As of September 2006, all of Macrovision's CD copy protection products, including CDS, had quietly disappeared from their website.[2] The December 2006 issue of Billboard announced that EMI had decided to abandon Copy Control worldwide.[3]

  1. ^ "Macrovision moves to acquire Midbar group". MusicWeek. November 11, 2002.
  2. ^ "Macrovision - Content Protection, Software Licensing, and Digital Rights Management". www.macrovision.com. Archived from the original on 9 September 2006. Retrieved 12 January 2022.
  3. ^ "EMI, Apple partner on DRM-free premium music". CNET News. April 2, 2007. Archived from the original on June 29, 2022.