Atlas: Created page with "{{under-construction}} '''STRM''' is an archive file format used in some Wii games developed by EA, such as Boom Blox and Monopoly Streets. It is usually compressed with [http://wiki.niotso.org/RefPack RefPack] and found with the ''.rpk'' extension. = File Format = The file byte order is always big endian in Wii games. All offsets are absolute. == File Header == The file starts with the following header: {| class="wikitable" ! Offset !! Type !! Description |-..."

2025-08-16T11:36:32Z

Created page with "{{under-construction}} '''STRM''' is an archive file format used in some Wii games developed by EA, such as Boom Blox and Monopoly Streets. It is usually compressed with [http://wiki.niotso.org/RefPack RefPack] and found with the ''.rpk'' extension. = File Format = The file byte order is always big endian in Wii games. All offsets are absolute. == File Header == The file starts with the following header: {| class="wikitable" ! Offset !! Type !! Description |-..."

New page

{{under-construction}}
'''STRM''' is an archive file format used in some Wii games developed by EA, such as [[Boom Blox]] and [[Monopoly Streets]]. It is usually compressed with [http://wiki.niotso.org/RefPack RefPack] and found with the ''.rpk'' extension.

= File Format =
The file byte order is always big endian in Wii games. All offsets are absolute.

== File Header ==
The file starts with the following header:

{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || Char[4] || '''File magic'''. Always ''STRM'' in ASCII.
|-
| 0x04 || UInt32 || '''File size''' in bytes.
|}

== AGRP ==
STRM files may contain multiple AGRP sections. These sections contain one [[#GHDR|GHDR]] section and multiple [[#ASET|ASET]] sections.

{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || Char[4] || '''Section magic'''. Always ''AGRP'' in ASCII.
|-
| 0x04 || UInt32 || '''Section size''' in bytes.
|}

=== GHDR ===
''Unknown''.

{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || Char[4] || '''Section magic'''. Always ''GHDR'' in ASCII.
|-
| 0x04 || UInt32 || '''Section size''' in bytes.
|-
| 0x08 || UInt32 || {{Unknown-left|'''Unknown'''.}}
|-
| 0x0C || UInt32 || '''Offset to name tag''' in the [[#STRS|STRS]] section.
|-
| 0x10 || UInt32 || {{Unknown-left|'''Unknown'''. Always the same value as 0x8?}}
|}

=== ASET ===
ASET sections link asset paths with their binary data.

{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || Char[4] || '''Section magic'''. Always ''ASET'' in ASCII.
|-
| 0x04 || UInt32 || '''Section size''' in bytes.
|-
| 0x08 || Byte[4] || {{Unknown-left|'''Unknown'''. Flags?}}
|-
| 0x0C || UInt32 || {{Unknown-left|'''Unknown'''.}}
|-
| 0x10 || UInt32 || {{Unknown-left|'''Unknown'''.}}
|-
| 0x14 || UInt32 || {{Unknown-left|'''Unknown'''.}}
|-
| 0x18 || UInt32 || '''File data offset''' in the [[#DATA|DATA]] section.
|-
| 0x1C || UInt32 || '''File data size''' in bytes.
|-
| 0x20 || UInt32 || '''Asset path offset''' in the [[#STRS|STRS]] section.
|-
| 0x24 || UInt32 || {{Unknown-left|'''Unknown'''. Always 0?}}
|}

== STRS ==
This section contains null-terminated strings, aligned by 0x4.

{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || Char[4] || '''Section magic'''. Always ''STRS'' in ASCII.
|-
| 0x04 || UInt32 || '''Section size''' in bytes.
|}

== DATA ==
This section contains file data, aligned by 0x20.

{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || Char[4] || '''Section magic'''. Always ''DATA'' in ASCII.
|-
| 0x04 || UInt32 || '''Section size''' in bytes.
|}

= Tools =
The following tools can handle EA STRM files:
* (none)

[[Category:EA File Formats]]

EA STRM (File Format) - Revision history