Laserlock/Laserlok: Difference between revisions

Latest revision as of 06:41, 8 April 2026

Ring based Protection with multiple (12-22) rings. Standard dumping methods apply as per /Ringed_Disc_Dumping_Guide.

Rings exist in multiple configurations and can be found either at the start or end of disc depending on version. Sometimes they will also have single ring sectors (Actually an EDC error) in between the actual rings like in https://redump.info/disc/113120/.

Code in PVD gives info, example:

SNVI1693

SN manufacturer

VI publisher

1693 id number

Some Laserlock discs might not rely on traditional ring sectors (example) in favor of a bad sector scheme that most closely resembles [/CodeLok_/_CopyLok Ringed CopyLok]. These should be dumped using normal dumping methods and a Kreon flashed TS-H353B/SH-D163B until more research is done.

Laserlock Patterns

Unlike many other ring based protections there is a rough method to tell exactly how large each ring is.

Using https://redump.info/disc/78564/ as an example.

2099-2176
2474-2551
2849-2926
3224-3301
3599-3676
3974-4051
4274-4351
4574-4651
4874-4951
5174-5251
5549-5626
6224-6301

Notice how each ring starts on either a 4 or 9 and ends on either a 6 or 1. This is known as a Laserlock pattern and is believed to be an artefact of the mastering process for these discs. Finding it using our current dumping methods takes a lot of time though. And it is currently not something we ask of dumpers.

@@ Line 1: / Line 1: @@
+Ring based Protection with multiple (12-22) rings. Standard dumping methods apply as per /Ringed_Disc_Dumping_Guide.
+Rings exist in multiple configurations and can be found either at the start or end of disc depending on version. Sometimes they will also have single ring sectors (Actually an EDC error) in between the actual rings like in https://redump.info/disc/113120/.
 Code in PVD gives info, example:
@@ Line 8: / Line 12: @@
 	id number
+Some Laserlock discs might not rely on traditional ring sectors ([https://redump.info/disc/128068/ example]) in favor of a bad sector scheme that most closely resembles [/CodeLok_/_CopyLok Ringed CopyLok]. These should be dumped using normal dumping methods and a Kreon flashed TS-H353B/SH-D163B until more research is done.
+==== Laserlock Patterns ====
+Unlike many other ring based protections there is a rough method to tell exactly how large each ring is.
+Using https://redump.info/disc/78564/ as an example.
+<ul>
+<li>2099-2176</li>
+<li>2474-2551</li>
+<li>2849-2926</li>
+<li>3224-3301</li>
+<li>3599-3676</li>
+<li>3974-4051</li>
+<li>4274-4351</li>
+<li>4574-4651</li>
+<li>4874-4951</li>
+<li>5174-5251</li>
+<li>5549-5626</li>
+<li>6224-6301</li>
+</ul>
+Notice how each ring starts on either a 4 or 9 and ends on either a 6 or 1. This is known as a Laserlock pattern and is believed to be an artefact of the mastering process for these discs. Finding it using our current dumping methods takes a lot of time though. And it is currently not something we ask of dumpers.
 [[Category:Copy Protection Guides| ]]