Editing ISO.BIN.EDAT

==ISO.BIN.EDAT==
This is an encryted container format, first step to work with it is to decrypt it <!--more info an internal links to other wiki pages needed--><br>
After decryption we shoould refer to it as ISO.BIN.DAT (without the "E"... so the EDAT became a DAT)

==ISO.BIN.DAT (decrypted)==
This can be considered an intermediate container composed by the ISO.BIN + a 40 bytes signature at bottom<br>
For the purpose of this wiki page and the concept of extracting data  from layers like an onion we need to delete the last 40 bytes to convert a ISO.BIN.DAT into a ISO.BIN<br>
The signature is intended as a sanity check to the ISO.BIN data. In other words if you are going to modify the ISO.BIN you will need to generate a new signature for it when rebuilding it<br>
Example source-code to generate the 40 byte signature can be found in sign3.py which is part of [https://github.com/sahlberg/pop-fe pop-fe].

==ISO.BIN structure==
All offsets are in little endian (except in the last table where there are two counters in decimal)

 1 block = 1024 bytes (0x400)
 1 cluster = 16 blocks = 1024*16 bytes =16384 bytes (0x4000)

 disc_starts ----------> 0x000400 (disc1), 0x100400 (disc2), 0x200400 (disc3), 0x300400 (disc4), etc...
 disc_tocs -----------> 0x000C00 (disc1), 0x100C00 (disc2), 0x200C00 (disc3), 0x300C00 (disc4), etc...
 disc_map_tables ----> 0x004400 (disc1), 0x104400 (disc2), 0x204400 (disc3), 0x304400 (disc4), etc...

===Header (optional)===
 1 block = 1024 bytes (0x400)

Always exists in PS1 classic multidiscs (the example below is from ff8), in the official PS1 classics single disc doesnt exists, but the custom PS1 classics single discs can use it (there are custom tools that adds it in all cases)

{| class="wikitable"
|-
! Block Nº !! Offset !! Length !! Name !! Example !! Description
|-
| rowspan="5" style="background-color:#DDDDDD;" | 0 <br /> '''common_header''' || 0x0000 || 0x10 (16 bytes) || '''magic''' || PSTITLEIMG000000 || 
|-
| 0x0010 || 0x1F0 (496 bytes) || ''padding'' || ||
|-
| 0x0200 || 0x64 (100 bytes) || '''discs_start_offsets''' || 00 04 00 00 || 25 chunks of 4 bytes ... each chunk = start position of each disc, in games with only 1 disc only the first 4 bytes are used
|-
| 0x0264 || 0x10 (16 bytes) || '''game_id''' || _SLES_12345 || common identifyer for all discs
|-
| 0x0274 || 0x18C (396 bytes) || ''padding'' || ||
|-
|}

===Section===
 64 clusters, 1024 blocks, 10485576 bytes (0x100000)

This structure is repeated one time for every disc of the game all them joined together consecutivelys (the example below is from ff8), the whole space is reserved even when there is no data used

{| class="wikitable" style="line-height:120%"
|-
! Cluster Nº !! Block Nº !! Offset !! Length !! Name !! Example !! Notes
|-
| rowspan="25" style="background-color:#DDDDDD;" | 0 <br /> '''Disc map header''' || rowspan="3" style="background-color:#DDDDDD;" | 1 || 0x0000 || 0x00C (12 bytes) || '''magic''' || PSISOIMG0000 || In "PSP Minis" It's NPUMDIMG ([[Environments|NP]] UMD Image) ..... probably another for "ps2 classics" (speculation)
|-
| 0x000C || 0x004 (4 bytes) || '''section size''' || || Offset from the start of the PSISOIMG section to the next section<br>For uncompressed images this is usually 0x100000 + size of iso-image padded to 0x9300<br>If the disc contains CD-DA tracks then this number will also include all the ATRACK encoded audio that follows after the disk image.
|-
| 0x0010 || 0x3F0 (1008 bytes) || ''padding'' || ||
|-
| rowspan="2" style="background-color:#DDDDDD;" | 2 || 0x0400 || 0x010 (16 bytes) || '''disc id''' || _SLES_12345 || in games with several discs each disc has a different id
|-
| 0x0410 || 0x3F0 (1008 bytes) || ''padding'' || ||
|-
| rowspan="2" style="background-color:#DDDDDD;" | 3 || 0x0800 || 0x3FС (1020 bytes) || '''[[ISO.BIN.EDAT#Disc toc table|Disc toc table]]''' || variable || Table of content, like CUE sheet, supports upto 99 entries (102 entries total)
|-
| 0x0BFC || 0x004 (4 bytes) || '''disc start offset'''  || 0x100000 ||
|-
| style="background-color:#DDDDDD;" | 4 || 0x0C00 || 0x400 (1024 bytes) || '''[[ISO.BIN.EDAT#Audio tracks table|Audio tracks table]]''' || || Datas of audio tracks (2-65). offset, size, and more
|-
| rowspan="5" style="background-color:#DDDDDD;" | 5 || 0x1000 || 0x220 (544 bytes) || '''[[ISO.BIN.EDAT#Audio tracks table|Audio tracks table]]''' || || Datas of audio tracks (66-99). offset, size, and more
|-
| 0x1220 || 0x0B4 (180 bytes) || '''[[ISO.BIN.EDAT#Game params table|Game params table]]''' || || <!-- doesnt makes sense to start using a block with a padding, i bet it was an unused area in the file/s i was looking at when i made this table -->
|-
| 0x12D4 || 0x004 (4 bytes) || '''subchannel offset''' || 0x100400 || Offset to where subchannel data is stored. This is used with libcrypt.
|-
| 0x12D8 || 0x004 (4 bytes) || '''subchannel count''' || 0x178 || Number of subchannel blocks. Each block is 12 bytes. Content is unknown.
|-
| 0x12DC || 0x124 (292 bytes) || ''padding'' || ||
|-
| style="background-color:#DDDDDD;" | 6 || 0x1400 || 0x400 (1024 bytes) || ''not used'' || ||
|-
| style="background-color:#DDDDDD;" | 7 || 0x1800 || 0x400 (1024 bytes) || ''not used'' || ||
|-
| style="background-color:#DDDDDD;" | 8 || 0x1C00 || 0x400 (1024 bytes) || ''not used'' || ||
|-
| style="background-color:#DDDDDD;" | 9 || 0x2000 || 0x400 (1024 bytes) || ''not used'' || ||
|-
| style="background-color:#DDDDDD;" | 10 || 0x2400 || 0x400 (1024 bytes) || ''not used'' || ||
|-
| style="background-color:#DDDDDD;" | 11 || 0x2800 || 0x400 (1024 bytes) || ''not used'' || ||
|-
| style="background-color:#DDDDDD;" | 12 || 0x2C00 || 0x400 (1024 bytes) || ''not used'' || ||
|-
| style="background-color:#DDDDDD;" | 13 || 0x3000 || 0x400 (1024 bytes) || ''not used'' || ||
|-
| style="background-color:#DDDDDD;" | 14 || 0x3400 || 0x400 (1024 bytes) || ''not used'' || ||
|-
| style="background-color:#DDDDDD;" | 15 || 0x3800 || 0x400 (1024 bytes) || ''not used'' || ||
|-
| rowspan="2" style="background-color:#DDDDDD;" | 16 || 0x3C00 || 0x010 (16 bytes) || '''checksum''' || <abbr title="1CCE003360C6E8A6B36A972D00EAFDBF">0x1CCE0033...</abbr> || It seems to be the checksum of this block, and because this block is always unused the checksum is always <small>1CCE003360C6E8A6B36A972D00EAFDBF</small>
|-
| 0x3C10 || 0x3F0 (1008 bytes) || ''padding'' || ||
|-
| rowspan="2" style="background-color:#DDDDDD;" | 1 <br /> '''[[ISO.BIN.EDAT#Disc map table|Disc map table]]''' || style="background-color:#DDDDDD;" | 17 || 0x4000 || variable || '''[[ISO.BIN.EDAT#Disc map table|Disc map table]]''' || || Divided in chunks of 32 bytes
|-
| style="background-color:#DDDDDD;" | Up to 32 || || || ||
|-
| style="background-color:#DDDDDD;" | Up to 64 <br /> '''[[ISO.BIN.EDAT#Disc map table|Disc map table]]''' || || || ||
|-
|}

====Disc toc table====
Entry structure:
{| class="wikitable"
|-
! Entry Nº !! Offset !! Length !! Name !! Example !! Notes
|-
| rowspan="10" style="background-color:#DDDDDD;" | 1 || 0x00 || 0x01 (1 byte) || '''TYPE''' || 0x41/0x01 || entry flags
|-
| 0x01 || 0x01 (1 byte) || '''TNO''' || 00 || always zero
|-
| 0x02 || 0x01 (1 byte) || '''POINT''' || 0xA0/0xA1/0xA2/0x01/0x02/0x03/etc || increases
|-
| 0x03 || 0x01 (1 byte) || '''MIN''' || varies || decimal
|-
| 0x04 || 0x01 (1 byte) || '''SEC''' || varies || decimal
|-
| 0x05 || 0x01 (1 byte) || '''FRAME''' || varies || decimal
|-
| 0x06 || 0x01 (1 byte) || '''ZERO''' || 00  || always zero
|-
| 0x07 || 0x01 (1 byte) || '''PMIN''' || varies || decimal
|-
| 0x08 || 0x01 (1 byte) || '''PSEC''' || varies || decimal
|-
| 0x09 || 0x01 (1 byte) || '''PFRAME''' || varies || decimal
|-
| style="background-color:#DDDDDD;" | Up to 102 || || || || || same structure than the previous entry
|}

====Audio tracks table====
Entry structure:
{| class="wikitable"
|-
! Entry Nº !! Offset !! Length !! Name !! Example !! Notes
|-
| rowspan="4" style="background-color:#DDDDDD;" | 1 || 0x00 || 0x04 (4 bytes) || '''offset''' ||  || 
|-
| 0x04 || 0x04 (4 bytes) || '''size''' ||  || 
|-
| 0x08 || 0x04 (4 bytes) || '''unknown_0''' ||  || always zeroed
|-
| 0x0C || 0x04 (4 bytes) || '''and more \o/''' ||  || encryption key
|-
| style="background-color:#DDDDDD;" | Up to 98 || || || || || same structure than the previous entry
|}

====Game Params table====
There is a setting related with PS1 libcrypt protection in this area (located at <s>relative</s> absolute offset 0x12B0 for single disc or 0x16B0 in the first disc for Multidisc, lenght 0x4 little endian), see: [https://www.psx-place.com/threads/ps1-libcrypt-support-on-ps3-official-emus-research-thread.35836/page-7#post-316873 talk]

Libcrypt in emulator is supported by supplying ready 16 bit key in little endian format (0xA371 in CTR example).
List of keys can be obtained using [https://github.com/Red-J/LibcryptMagic-Word-Finder-PSX Libcrypt Magic Word Finder PSX]

====Disc map table====
The table has an area reserved of 1032192 bytes. Divided in 32256 entries, of 32 bytes each entry. The number of used entryes in the file_table can vary (seems to be dependant of the .iso contents). The number of entries availables to store data is affected by a checksum (16 bytes) that is present only in the the last block of each cluster (in block nº16 of every cluster)
When this checksum is between used entryes... his length is 32 bytes (it "steals" the area of one entry)
Seems to be a checksum of this block... when the block is filled with zeroes the checksum is : 1CCE0033 60C6E8A6 B36A972D 00EAFDBF

The first 4 bytes of each entry (file offset from start of .iso root) increases for each entry in a amount of bytes determined by the previous entryes.... in other words... the second file in the .iso is displaced the number of bytes used by the first file... and the third file is displaced in a amount of bytes used by the addition of the sizes of first and second file

{| class="wikitable"
|-
! Entry Nº !! Offset !! Length !! Name !! Example !! Notes
|-
| rowspan="5" style="background-color:#DDDDDD;" | 1 || 0x00 || 0x04 (4 bytes) || '''file_offset''' || 0 || file offset from start of .iso root (for the first entry is always 0)
|-
| 0x04 || 0x02 (2 bytes) || '''file_size''' || variable || this size determines the displacement of the next file (in the next entry)
|-
| 0x06 || 0x02 (2 bytes) || '''file_type ?''' || 01 00 || usually 1... and 0 for the last entry
|-
| 0x08 || 0x10 (16 bytes) || '''file_checksum''' || variable || First 16 bytes of the sha1 of the uncompressed data
|-
| 0x18 || 0x08 (8 bytes) || ''padding'' || ||
|-
| style="background-color:#DDDDDD;" | Up to 32256 || || || || || same structure than the previous entry
|}

====Common Disc table====
Composed by a variable number of entries (depends of the number of files/folders inside the discs), 12 bytes each entry

{| class="wikitable"
|-
! Entry Nº !! Offset !! Length !! Name !! Example !! Notes
|-
| rowspan="4" style="background-color:#DDDDDD;" | 1 || 0x00 || 0x04 (4 bytes) || '''file_offset ?''' || 0 || always increases
|-
| 0x04 || 0x02 (2 bytes) || '''file_type ?''' || 01 01 || always 01 01
|-
| 0x06 || 0x03 (3 bytes) || '''counter 1''' || || some kind of counter, in decimal, always increases <-------- related with "sectors" inside the .iso ?
|-
| 0x09 || 0x03 (3 bytes) || '''counter 2''' || || another counter, in decimal, always increases, its in relationship with the previous counter (this one is always 200 bytes bigger than the previous one)
|-
| style="background-color:#DDDDDD;" | Up to ? || || || || || same structure than the previous entry
|}

There are 2 "special" entries to mark the "start of a disc" (FFFFFFFF 00000000 FFFFFFFF), and the "end of a disc" (FFFFFFFF FFFFFFFF FFFFFFFF). Between the start and the end, there are a variable number of entries.

There is also an added string at the end of the last disc (after the last FFFFFFFF FFFFFFFF FFFFFFFF entry)... is a 40 bytes unknown area (in my example my game had 4 discs so maybe this area is divided in chunks of 10 bytes for each disc)

So as an example... for a game with 4 discs this table is:
* first entry of disc 1 ---> FFFFFFFF 00000000 FFFFFFFF (start of disc 1)
* next entries of disc 1 --> data from disc.... the number is variable
* last entry of disc 1 ---> FFFFFFFF FFFFFFFF FFFFFFFF (end of disc 1)
* first entry of disc 2 ---> FFFFFFFF 00000000 FFFFFFFF (start of disc 2)
* next entries of disc 2 --> data from disc.... the number is variable
* last entry of disc 2 ---> FFFFFFFF FFFFFFFF FFFFFFFF (end of disc 2)
* first entry of disc 3 ---> FFFFFFFF 00000000 FFFFFFFF (start of disc 3)
* next entries of disc 3 --> data from disc.... the number is variable
* last entry of disc 3 ---> FFFFFFFF FFFFFFFF FFFFFFFF (end of disc 3)
* first entry of disc 4 ---> FFFFFFFF 00000000 FFFFFFFF (start of disc 4)
* next entries of disc 4 --> data from disc.... the number is variable
* last entry of disc 4 ---> FFFFFFFF FFFFFFFF FFFFFFFF (end of disc 4)
* unknown area of 40 bytes (10 bytes for each disc ?)

== Minis ISO.BIN structure ==

=== Header ===

{| class="wikitable sortable"
|-
! Name !! Offset !! Size !! Example !! Remark
|-
| Magic! || 0x0 || 0x8 || NPUMDIMG || 
|-
| unk1 || 0x8 || 0x4 || N.A || (be)
|-
| Block Size || 0xC || 0x4 || N.A || (be)
|-
| ContentID || 0x10 || 0x24 || UP4123-NPUZ00119_00-ANGRYBIRDSGAME01 ||
|-
| Padding1 || 0x34 || 0xC || ({0x0}filled)||
|-
| Common1 || 0x40 || 0x4 || 0x00 0x08 0x00 0xE0 ||
|-
| Padding2 || 0x44 || 0x4 || ({0x0}filled) ||
|-
| unk2 || 0x48 || 0x4 || N.A || (be)
|-
| Padding3 || 0x4c || 0x8 || ({0x0}filled) ||
|-
| LBA Start || 0x54 || 0x4 || N.A || (be)
|-
| Padding4 || 0x58 || 0x4 || ({0x0}filled) ||
|-
| unk3 || 0x5C || 0x4 || N.A || (be)
|-
| Padding5 || 0x60 || 0x4 || ({0x0}filled) ||
|-
| LBA End || 0x64 || 0x4 || N.A || (be)
|-
| unk4 || 0x68 || 0x4 || N.A || (be)
|-
| Np_Table Offset || 0x6C || 0x4 || N.A || (be)
|-
| GameID || 0x70 || 0xA || NPUZ-00119 ||
|-
| Common2 || 0x7A || 0x26 || N.A ||
|-
| Header Key || 0xA0 || 0x10 || N.A. ||
|-
| Padding6 || 0xB0 || 0x50 || N.A({0x0} filled) ||
|-
|}

=== Iso Block Table (1st decrypted but compressed block)===

{| class="wikitable sortable"
|-
! Name !! Offset !! Size !! Example !! Remark
|-
| Block MAC || 0x100 || 0x10 || N.A || 
|-
| Block Offset || 0x110 || 0x4 || N.A || (be)
|-
| Block Size || 0x114 || 0x4 || N.A || (be)
|-
| Padding || 0x118 || 0x8 || 00000000 ||
|}

Until X blocks where X is the block number

== Minis MINIS.BIN structure == 

=== Header ===

{| class="wikitable sortable"
|-
! Name !! Offset !! Size !! Example !! Remark
|-
| Magic! || 0x0 || 0x8 || NPUMDIMG || 
|-
| unk1(be) || 0x8 || 0x4 || N.A ||
|-
| Block Size(be) || 0xC || 0x4 || N.A ||
|-
| ContentID || 0x10 || 0x24 || UP4123-NPUZ00119_00-ANGRYBIRDSGAME01 || 
|-
| Padding || 0x34 || 0x8 ||({0x0} filled) ||
|-
| Encrypted Version Key || 0x40 || 0x10 || N.A || AES-CBC Encrypted
|- 
|}

=== Notes ===

* You can decrypt any eboot.pbp from a mini OR pspremaster OR psn paid eboot(?) with npdpc
* You can use any header on an iso.bin, and the ps3 won't even try to check it
* (be) means that the generated table values will have to be endian swapped when using npdpc (now possible thanks to arnold)
* [[http://www.ps3hax.net/showthread.php?p=569948#post569948 arnold's code]]
* [[https://mega.co.nz/#!45tiWALS!XyiDIm00rYdHMs0vNyOpYzUAIBAG_dLuZmwjP0FslCA kirk lib]]

==Decrypting owned ISO.BIN.EDATs and MINIS.EDATs==
{{warning|content='''These source codes won't work without further modification!'''
}}
These examples work with every EDAT type.
===Decrypting with SCE SDK===
<!--// CELL_FS_   CELL_FS //-->
<pre>
#define PSP_EMULATOR_KLIC {{0x2A, 0x6A, 0xFB, 0xCF, 0x43, 0xD1, 0x57, 0x9F, 0x7D, 0x73, 0x87, 0x41, 0xA1, 0x3B, 0xD4, 0x2E}}
#define BUF_SIZE      (16*1024)
#define NP_POOL_SIZE  (128*1024)

#include <np.h>
#include <np/drm.h>
#include <stdio.h>
#include <cell/cell_fs.h>
#include <cell/sysmodule.h>

int main ()
{
uint8_t np_pool[NP_POOL_SIZE];
uint8_t read_buf[BUF_SIZE];
int ret;
int fd1,fd2;
uint64_t file_size;
uint64_t sw;
char *edata_file,*raw_file; //raw_file will be created if it does not exist
SceNpDrmKey k_licensee = PSP_EMULATOR_KLIC;

ret = cellSysmoduleLoadModule(CELL_SYSMODULE_FS);
ret = cellSysmoduleLoadModule(CELL_SYSMODULE_SYSUTIL_NP);
printf("sceNpInit()\n");
ret = sceNpInit(NP_POOL_SIZE, np_pool);

printf(" Open '%s' as NPDRM file\n", edata_file);
ret = sceNpDrmIsAvailable2(&k_licensee, edata_file);
if (ret != CELL_OK) {
	printf("EDAT not activated\n");
	return ret;
}
SceNpDrmOpenArg arg;
	arg.flag = SCE_NP_DRM_OPEN_FLAG;
	ret = cellFsOpen(edata_file, CELL_FS_O_RDONLY, &fd1, &arg, sizeof(arg));
	if (ret != CELL_FS_OK) {
		printf("Error opening for reading\n");
		return ret;
	}
printf("Opening file to dump to '%s'\n", raw_file);
	ret = cellFsOpen(raw_file, CELL_FS_O_RDWR|CELL_FS_O_CREAT, &fd2, NULL, 0);
	if (ret != CELL_FS_OK) {
		printf("Error opening file\n");
		cellFsClose(fd2);
		return ret;
	}
printf("\n[ dump edata ]\n");
	for (uint64_t r = 0; r < file_size; r += BUF_SIZE) {
		uint64_t rsize;
		uint64_t remain = file_size - r;
		if (remain > BUF_SIZE) { remain = BUF_SIZE; }

		ret = cellFsRead(fd1, read_buf, remain, &rsize);
		if (ret != CELL_OK || rsize != remain) {
			printf("Read error ('%s'): ret = 0x%08x, size = %llx, %llx\n",
					edata_file, ret, remain, rsize);
			if (ret == CELL_OK) { ret = -1; }
			cellFsClose(fd1);
			cellFsClose(fd2);
			return ret;
		}

		printf("dump data: (0x%08llx - 0x%08llx)  ", r, r + remain);
		ret = cellFsWrite(fd2, (const void *)read_buf, (size_t)remain, &sw);
		if (ret != CELL_FS_OK) {
			cellFsClose(fd1);
			cellFsClose(fd2);
			printf("ERROR\n");
			return -1;
		}
		printf("OK\n");
	}

	/* file close */
ret = cellFsClose(fd1);
ret = cellFsClose(fd2);
ret = sceNpTerm();
ret = cellSysmoduleUnloadModule(CELL_SYSMODULE_SYSUTIL_NP);
ret = cellSysmoduleUnloadModule(CELL_SYSMODULE_FS);
return ret;
}
</pre>

=== Decrypting with PSL1GHT ===
* https://github.com/euss/psp_edat_decryptor (not my code, just git'ed it for convenience)
* mirrors: [http://mir.cr/0XXBT99Z], [http://mir.cr/1SNVEH2D], [http://mir.cr/ZKZJFPET]

==About PS2 Classics==
There are some new formats present in PS2 Classics. The first one is ISO.BIN.ENC, the second one is .dxt, which is inside CONTENT folder and there's also a single file named CONFIG. You can see more about this when you first install a PS2 Classic. There's also a  problem with the Data while trying to execute the instalable file. The message Unsupported Data appears on the screen when highliting the file and the error 80028F14 is shown while trying to start.<br>
This was made with the Max Payne game. There could probably be other formats present aswell

===ISO.BIN.EDAT===
For PSN PS2-Classics Games ISO.BIN.EDAT only contains the Title Id of the disc. Example:
<pre>SLES-12345</pre>

{{File Formats}}<noinclude>[[Category:Main]]</noinclude>