DCI Specs - Digital Cinema Initiatives

• Rating• Aspect Ratio• Image Format• Audio Format5.4.3.2. Image Track Information (list for each reel)Any given Image Track File shall have one or more Entry Points within a givencomposition playlist.• UUID• File Authentication Code• Entry Point (number of frames offset into the Track File)• Duration5.4.3.3. Audio Track Information (list for each reel)Any given Audio Track File shall have one or more Entry Points within a givencomposition playlist.• UUID• File Authentication Code• Entry Point (number of frames offset into the Track File)• Duration5.4.3.4. Subtitle Track Information if Present (list for each reel)Digitally Certified Any given Subtitle Track File shall have one or more Entry Pointswithin a given composition playlist.• UUID• File Authentication Code• Entry Point (number of frames offset into the Track File)• Duration5.4.3.5. [Removed][This item left blank intentionally.]5.4.3.6. Digital Signature• Encrypted hash (message digest)• Signer identification5.4.4. Security of the CPLFor encrypted essence, the Composition Playlist shall be digitally signed such thatmodifications to the Composition Playlist (and/or the associated composition) can beDCI Digital Cinema System Specification v.1.2 Page 54