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- Disc_wobble abstract "Disc wobble, also called wobble groove, is a technology developed by Royal Philips Electronics NV. This technology together with digital watermarking could ensure that only authentic discs would be played on the next generation players that will respect these proposed forms of copy protection (see also Digital rights management).This technique encodes hidden protection data onto the lead-in groove along the inner edge of a disc in a difficult-to-duplicate manner. Normally, discs' grooves form a smooth spiral, with the data encoded as reflective and absorptive spots along the path. Disc wobble reshapes the groove by wiggling the path back and forth ever so slightly in a pattern that conveys the ons and offs of digital data.The wobble is too fast for the laser pickup head to physically follow, but the error signals that keep the head’s lens on track move in step with the wobble. This allows the protection data to be read by an appropriately equipped player, entirely separate from the normal data recorded in the track. If a decryption or authentication key is encoded in the wobble, then only discs which reproduce the wobble will be playable. Due to the sophisticated technologies needed to manufacture such discs, pirating authentic wobbled discs would be next to impossible.".
- Disc_wobble thumbnail Wobblegroove.png?width=300.
- Disc_wobble wikiPageExternalLink 6298021.html.
- Disc_wobble wikiPageExternalLink wo.jsp?wo=2004086369.
- Disc_wobble wikiPageID "8264043".
- Disc_wobble wikiPageRevisionID "570487514".
- Disc_wobble hasPhotoCollection Disc_wobble.
- Disc_wobble subject Category:Compact_Disc_and_DVD_copy_protection.
- Disc_wobble subject Category:Digital_rights_management_systems.
- Disc_wobble type Artifact100021939.
- Disc_wobble type DRMSystems.
- Disc_wobble type Instrumentality103575240.
- Disc_wobble type Object100002684.
- Disc_wobble type PhysicalEntity100001930.
- Disc_wobble type System104377057.
- Disc_wobble type Whole100003553.
- Disc_wobble comment "Disc wobble, also called wobble groove, is a technology developed by Royal Philips Electronics NV. This technology together with digital watermarking could ensure that only authentic discs would be played on the next generation players that will respect these proposed forms of copy protection (see also Digital rights management).This technique encodes hidden protection data onto the lead-in groove along the inner edge of a disc in a difficult-to-duplicate manner.".
- Disc_wobble label "Disc wobble".
- Disc_wobble label "Disc wobble".
- Disc_wobble sameAs Disc_wobble.
- Disc_wobble sameAs m.05256dw.
- Disc_wobble sameAs Q4894699.
- Disc_wobble sameAs Q4894699.
- Disc_wobble sameAs Disc_wobble.
- Disc_wobble wasDerivedFrom Disc_wobble?oldid=570487514.
- Disc_wobble depiction Wobblegroove.png.
- Disc_wobble isPrimaryTopicOf Disc_wobble.