NSD - Revision history

Mddass at 09:00, 8 February 2026

2026-02-08T09:00:53Z

Mddass: /* Crash 2 */

2019-12-13T22:35:51Z

‎Crash 2

Mddass: /* Crash 1 */

2019-12-11T01:32:51Z

‎Crash 1

Chekwob: 11 revisions imported: Initial import from Wikia

2019-04-27T17:44:38Z

11 revisions imported: Initial import from Wikia

Wikia>Thaswordster at 18:11, 18 December 2015

2015-12-18T18:11:15Z

Wikia>Thaswordster: Ran some tests

2015-12-18T18:07:57Z

Ran some tests

Wikia>Thaswordster: Changing "loading screen descriptor" to "loading screen image" since all of it is an IMAG file of some sorts.

2015-08-21T22:58:55Z

Changing "loading screen descriptor" to "loading screen image" since all of it is an IMAG file of some sorts.

Wikia>Thaswordster: Adding Crash 1 prototype, Crash 2 retail (Crash 2 demo NSD is different) and Crash 3 retail tables.

2015-08-05T20:06:55Z

Adding Crash 1 prototype, Crash 2 retail (Crash 2 demo NSD is different) and Crash 3 retail tables.

Show changes

Wikia>Thaswordster: Fixed asterisk position.

2015-08-05T19:12:04Z

Fixed asterisk position.

Wikia>Chekwob: /* Crash 1 */ Clarified use of asterisks

2015-08-05T17:19:48Z

‎Crash 1: Clarified use of asterisks

← Older revision		Revision as of 09:00, 8 February 2026
Line 1:		Line 1:
−	NSD ~~(most likely to stand for '''N'''aughty Dog '''S'''oftware '''D'''ata or '''N'''aughty Dog '''S'''ystem '''D'''ata)~~ is a custom file format created by Naughty Dog for use in the Crash games. The [[CD-ROM Directory Structure\|root directory]] of a Crash game CD will have several sub-directories, with names S0, S1, S2, and S3; within these sub-directories are pairs of files with the name S00000**.NSD/.NSF. Each pair corresponds to a specific "level" in the game, and these files contain the game data for that level. An NSD file is essentially an index for its paired NSF file, but it also contains additional information such as a level descriptor/header and a loading screen descriptor.	+	NSD is a custom file format created by Naughty Dog for use in the Crash games. The [[CD-ROM Directory Structure\|root directory]] of a Crash game CD will have several sub-directories, with names S0, S1, S2, and S3; within these sub-directories are pairs of files with the name S00000**.NSD/.NSF. Each pair corresponds to a specific "level" in the game, and these files contain the game data for that level. An NSD file is essentially an index for its paired NSF file, but it also contains additional information such as a level descriptor/header and a loading screen descriptor.

	== Format ==		== Format ==

@@ Line 206: / Line 206: @@
 |-
 |0x520 + (8 x s) + 0xC
-|Object count
+|Entity count
 |4 bytes
 |*
 |-
-|0x520 + (8 x s) + 0x14
+|0x520 + (8 x s) + 0x10
 |Object Type -> Executable EID map
 |4 bytes x 64

@@ Line 73: / Line 73: @@
 |-
 |0x418
-|Offset of Uncompressed Chunks
+|Offset of Uncompressed Chunks (in sectors)
 |4 bytes
 |*
@@ Line 83: / Line 83: @@
 |-
 |0x420
-|Compressed Chunk Offsets
+|Compressed Chunk Info (size 6 bits in sectors, then offset in sectors)
 |4 bytes x 64
 |*

@@ Line 28: / Line 28: @@
 |4 bytes x 2 x s
 |*
 |}
 Remaining data (object type --> executable EID type, level ID, initial zone EID and magic number) is stored inside an LDAT entry in the respective NSF file.
@@ Line 126: / Line 125: @@
 |Misc images (loading screens, etc.)
 |62720 bytes each image
 |}
 <nowiki>(**) - Possibly completely useless.</nowiki>
@@ Line 221: / Line 219: @@
 |24 bytes x p
 |*
 |0x520 + (8 x s) + 0x1DC + (24 x p)
 |Misc images (loading screens, etc.)
@@ Line 319: / Line 318: @@
 |24 bytes x p
 |*
 |0x520 + (8 x s) + 0x2DC + (24 x p)
 |Misc images (loading screens, etc.)

@@ Line 1: / Line 1: @@
-NSD (most likely to stand for '''N'''aughty Dog '''S'''oftware '''D'''ata or '''N'''aughty Dog '''S'''ystem '''D'''ata) is a custom file format created by Naughty Dog for use in the Crash games. The [[CD-ROM Directory Structure|root directory]] of a Crash game CD will have several sub-directories, with names S0, S1, S2, and S3; within these sub-directories are pairs of files with the name S00000**.NSD/.NSF. Each pair corresponds to a specific level in the game, and these files contain the game data for that level. An NSD file is essentially an index for its paired NSF file, but it also contains additional information such as a level descriptor/header and a loading screen descriptor.
+NSD (most likely to stand for '''N'''aughty Dog '''S'''oftware '''D'''ata or '''N'''aughty Dog '''S'''ystem '''D'''ata) is a custom file format created by Naughty Dog for use in the Crash games. The [[CD-ROM Directory Structure|root directory]] of a Crash game CD will have several sub-directories, with names S0, S1, S2, and S3; within these sub-directories are pairs of files with the name S00000**.NSD/.NSF. Each pair corresponds to a specific "level" in the game, and these files contain the game data for that level. An NSD file is essentially an index for its paired NSF file, but it also contains additional information such as a level descriptor/header and a loading screen descriptor.
 == Format ==
 === Crash 1 Prototype ===
 {| class="article-table"
@@ Line 31: / Line 30: @@
+|
 |}
-Remaining data (object type --> executable EID type, level ID, initial zone EID and magic number) is stored inside an LDAT entry.
+Remaining data (object type --> executable EID type, level ID, initial zone EID and magic number) is stored inside an LDAT entry in the respective NSF file.
 === Crash 1 ===
 {| class="article-table"
@@ Line 40: / Line 39: @@
 |-
 |0x0
-|Entry Hash Table Offsets
+|Entry Hash Table Offsets<!--Setting this whole list to 0 or adding entries to the NSD without changing this does not affect the game at all-->
 |4 bytes x 256
 |*
@@ Line 60: / Line 59: @@
 |-
 |0x40C
-|Compressed chunk offset table size(?) <!--Going to test now.-->
+|Unknown
 |4 bytes
 |*
@@ Line 110: / Line 109: @@
 |-
 |0x520 + (8 x s) + 0xC
-|Initial Camera Path (Item Index)
+|Initial Camera Path (Camera Item Index)
 |4 bytes
 |*
@@ Line 125: / Line 124: @@
 |-
 |0x520 + (8 x s) + 0x118
-|Loading screen image
+|Misc images (loading screens, etc.)
-|? bytes
+|62720 bytes each image
+|
 |}
-<nowiki>(**) - Only useful in older versions of Crash 1, but is present in all 3 games.</nowiki>
+<nowiki>(**) - Possibly completely useless.</nowiki>
-=== Crash 2 Retail ===
+===Crash 2===
 {| class="article-table"
 !Offset
@@ Line 139: / Line 138: @@
 |-
 |0x0
-|Entry Hash Table Offsets (Entries to load when level is told to load)
+|Entry Hash Table Offsets
 |4 bytes x 256
 |*
@@ Line 193: / Line 192: @@
 |*
 |-
-|0x520 + (8 x s) + 0x0
+|0x520 + (8 x s)
-|Spawn points present in the NSD count
+|Number of spawn points present in the NSD
 |4 bytes
 |p
@@ Line 219: / Line 218: @@
 |-
 |0x520 + (8 x s) + 0x1DC
-|Spawn points (optional, only starting spawn points are needed)
+|Spawn points (semi-optional, only starting spawn points are needed)
-|?
+|24 bytes x p
-|0x18 x p
+|*
 |}
-<nowiki>(**) - Only useful in older versions of Crash 1, but is present in all 3 games.</nowiki>
+<nowiki>(**) - Possibly completely useless.</nowiki>
-=== Crash 3 Retail ===
+===Crash 3===
 {| class="article-table"
 !Offset
@@ Line 233: / Line 236: @@
 |-
 |0x0
-|Entry Hash Table Offsets (Entries to load when level is told to load)
+|Entry Hash Table Offsets
 |4 bytes x 256
 |*
@@ Line 314: / Line 317: @@
 |0x520 + (8 x s) + 0x2DC
 |Spawn points (optional, only starting spawn points are needed)
-|?
+|24 bytes x p
-|0x18 x p
+|*
 |}
-<nowiki>(**) - Only useful in older versions of Crash 1, but is present in all 3 games.</nowiki>
+<nowiki>(**) - Possibly completely useless.</nowiki>
 == Structure ==

← Older revision	Revision as of 17:44, 27 April 2019
(No difference)

@@ Line 26: / Line 26: @@
 |-
 |0x408
-|Entry containing object type -> executable EID(**) type
+|Entry containing object type -> executable EID type(**)
 |4 bytes
 |*