[Request] Layer 0 / 1 Ring Order #293

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opened 2026-01-29 16:13:45 +00:00 by claunia · 0 comments

claunia commented 2026-01-29 16:13:45 +00:00

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Originally created by @EdnessP on GitHub (Apr 24, 2021).

Originally assigned to: @mnadareski on GitHub.

The issue

A few pressing plants (Sony) have their mastering ringcodes done backwards - Outer ring is Layer 0, inner ring is Layer 1. This has been confirmed to be the case for PS2 and PS3 discs (needs to be confirmed for PS4 & PS5.)

This likely also extends to several PC discs pressed by Sony, see Redump submissions 77411 (EU), 28971 (JP), 49280 (US).

Potential solution

Checking if the selected disc dumping profile is a Sony system, and inverting the Inner/Outer layer labels. This would solve the issue for PlayStation discs, however for PC this may not really be solvable.

Originally created by @EdnessP on GitHub (Apr 24, 2021). Originally assigned to: @mnadareski on GitHub. # The issue A few pressing plants (**_Sony_**) have their mastering ringcodes done backwards - Outer ring is Layer 0, inner ring is Layer 1. This has been confirmed to be the case for PS2 and PS3 discs (needs to be confirmed for PS4 & PS5.) This likely also extends to several PC discs pressed by Sony, see Redump submissions [77411](http://redump.org/disc/77411/) (EU), [28971](http://redump.org/disc/28971/) (JP), [49280](http://redump.org/disc/49280/) (US). # Potential solution Checking if the selected disc dumping profile is a Sony system, and inverting the Inner/Outer layer labels. This would solve the issue for PlayStation discs, however for PC this may not really be solvable.

claunia added the enhancement label 2026-01-29 16:13:45 +00:00

claunia closed this issue 2026-01-29 16:13:45 +00:00

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Reference: SabreTools/MPF#293