ROM Hack .lz-compression of Fire Emblem: IF (Help?)

[DJPlayer]

Hey Guys,

at the moment, I'm on vacation and got a copy of Fire Emblem If a few moments ago.
I decrypted the game and wanted to check the files in it.
The problem: Almost all files are compressed with a (unknown) lz-compression (not LZ10, LZ11, LZOvl, Huffman4, Huffman8) and want to know how I can decompress them.

I've linked a Screenshot of the file "24x24.bch.lz (3kb)" in "romfs\icon".

Spoiler

Hope someone could help me with this

 

[Blebleman]

Hey Guys,

at the moment, I'm on vacation and got a copy of Fire Emblem If a few moments ago.
I decrypted the game and wanted to check the files in it.
The problem: Almost all files are compressed with a (unknown) lz-compression (not LZ10, LZ11, LZOvl, Huffman4, Huffman8) and want to know how I can decompress them.

I've linked a Screenshot of the file "24x24.bch.lz (3kb)" in "romfs\icon".[/SPOILER]
Hope someone could help me with this

Compression aside (can't help you there) -- you have an undumped day-0 game in your hands -- tread lightly. Someone on GBAtemp did a no-no and ended up paying big time for it.

EDIT: Whoa, actually, day -1. Your store broke the street date, it's coming out tomorrow!

 

[SciresM]

Hey Guys,

at the moment, I'm on vacation and got a copy of Fire Emblem If a few moments ago.
I decrypted the game and wanted to check the files in it.
The problem: Almost all files are compressed with a (unknown) lz-compression (not LZ10, LZ11, LZOvl, Huffman4, Huffman8) and want to know how I can decompress them.

I've linked a Screenshot of the file "24x24.bch.lz (3kb)" in "romfs\icon".

Spoiler

Hope someone could help me with this

I wouldn't know ANYTHING about this, of course...but I can tell you that in Awakening if you delete the first four bytes of a .lz file you can use dsdsdecmp to lz11 decompress it

 

[loco365]

Compression aside (can't help you there) -- you have an undumped day-0 game in your hands -- tread lightly. Someone on GBAtemp did a no-no and ended up paying big time for it.

EDIT: Whoa, actually, day -1. Your store broke the street date, it's coming out tomorrow!

If you look on a very popular site that almost everyone here refers to, there's links there to the ROM image, so it already has hit the internet.

 

[DJPlayer]

I wouldn't know ANYTHING about this, of course...but I can tell you that in Awakening if you delete the first four bytes of a .lz file you can use dsdsdecmp to lz11 decompress it

tried the same right now.
Removed the first four bytes (13 e4 42 00) tried to decompress it with dsdecomp (lz11).
Error: This file is not is a supported format

(used DsDecmp GUI in 3DSExplorer 1.5.3.1).

EDIT: I tried the other compression-variants, too but none of them worked

 

[SciresM]

tried the same right now.
Removed the first four bytes (13 e4 42 00) tried to decompress it with dsdecomp (lz11).
Error: This file is not is a supported format

(used DsDecmp GUI in 3DSExplorer 1.5.3.1).

I know literally nothing about the DsDecmp GUI.

That said, the files are LZ-11 compressed with a 4 byte meta uint (0x13, uncompressed_file_length) in front of the compressed data.

Try using command-line DsDecmp.

 

[DJPlayer]

I know literally nothing about the DsDecmp GUI.

That said, the files are LZ-11 compressed with a 4 byte meta uint (0x13, uncompressed_file_length) in front of the compressed data.

Try using command-line DsDecmp.

OKay, that seems to work