Disc ID: Difference between revisions

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((Imported from MoinMoin))
 
((Imported from MoinMoin))
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===Detailed Display===
===Detailed Display===


On the release view page, any DiscIDs are shown at the bottom of the page, and clicking on these or on the "View Info" link will give a detailed display of the DiscID.
On the release view page, any Disc IDs are shown at the bottom of the page, and clicking on these or on the "View Info" link will give a detailed display of the Disc ID.


===DiscID Clashes===
===Disc ID Clashes===


An album may have any number of DiscIDs, and a DiscID may be linked to multiple albums. This is because [[Disc ID Calculation|DiscIDCalculation]] is involves a hash of the frame offsets of the CD tracks.
A release may have any number of Disc IDs, and a Disc ID may be linked to multiple releases. This is because [[Disc ID Calculation|DiscIDCalculation]] involves a hash of the frame offsets of the CD tracks.


Different pressing of a CD often have slightly different frame offsets, and hence different DiscIDs.
Different pressing of a CD often have slightly different frame offsets, and hence different Disc IDs.


Conversely, two different CDs may happen to have exactly the same set of frame offsets and hence the same DiscID, although there is no example known for this.
Conversely, two different CDs may happen to have exactly the same set of frame offsets and hence the same Disc ID, although there is no concrete example known for this.

----Author: [[User:ZeroGravitas|ZeroGravitas]]


[[Category:To Be Reviewed]] [[Category:Documentation]] [[Category:Terminology]]
[[Category:To Be Reviewed]] [[Category:Documentation]] [[Category:Terminology]]

Revision as of 14:05, 27 April 2006

A DiscID is the code number which MusicBrainz uses to link a physical CD to a Release listing.

It is a string of letters (something like [[[Image:cd.gif]].

Detailed Display

On the release view page, any Disc IDs are shown at the bottom of the page, and clicking on these or on the "View Info" link will give a detailed display of the Disc ID.

Disc ID Clashes

A release may have any number of Disc IDs, and a Disc ID may be linked to multiple releases. This is because DiscIDCalculation involves a hash of the frame offsets of the CD tracks.

Different pressing of a CD often have slightly different frame offsets, and hence different Disc IDs.

Conversely, two different CDs may happen to have exactly the same set of frame offsets and hence the same Disc ID, although there is no concrete example known for this.