# Amiga Disk image File (FFS+INTL)

> file format

**Wikidata**: [Q105857932](https://www.wikidata.org/wiki/Q105857932)  
**Source**: https://4ort.xyz/entity/amiga-disk-image-file-ffs-intl

## Summary
Amiga Disk image File (FFS+INTL) is a disk image file format used to store the contents and structure of an Amiga disk volume. It is based on the generic Amiga Disk image File format and is commonly associated with the `.adf` file extension.

## Key Facts
- Amiga Disk image File (FFS+INTL) is a **file format**.
- It is an **instance of a disk image**, meaning it is a computer file containing the contents and structure of a disk volume.
- It is **based on**: *Amiga Disk image File (generic)*.
- A commonly used **file extension** for this format is: **`.adf`**.
- A listed **file format identification pattern** is **`444F5303`**.
- The identification pattern is specified as occurring at the **beginning of the file**, in **hexadecimal**, at **offset 0**.
- It is described at: https://en.wikipedia.org/wiki/Amiga_Disk_File

## FAQs
### Q: What is Amiga Disk image File (FFS+INTL) used for?
A: It is used as a disk image format, meaning it stores the contents and structure of an Amiga disk volume in a computer file. This allows a disk’s data layout to be represented as a single file.

### Q: What file extension does Amiga Disk image File (FFS+INTL) use?
A: It is associated with the `.adf` file extension. This extension is commonly used for Amiga Disk image files.

### Q: How can Amiga Disk image File (FFS+INTL) be identified in a file signature scan?
A: One identification pattern for the format is the hexadecimal value `444F5303`. It is specified to appear at the beginning of the file (offset 0).

### Q: Is Amiga Disk image File (FFS+INTL) different from a generic Amiga Disk image File?
A: It is based on the generic Amiga Disk image File format. The provided sources classify it as a specific variant related to that generic format.

## Why It Matters
Amiga Disk image File (FFS+INTL) matters because it represents a standardized way to capture an Amiga disk volume as a single computer file while preserving the disk’s contents and structure. As a disk image format, it supports workflows where an exact representation of a disk volume is needed, such as transferring disk contents between systems, storing disk data in archives, or working with disk volumes in software that expects disk-image inputs. Its association with the `.adf` extension provides a recognizable convention for naming and handling these images. Additionally, the presence of a defined identification pattern (`444F5303` at the beginning of the file) supports automated file-type detection, which is important for tooling such as format scanners and cataloging systems. Being explicitly based on the generic Amiga Disk image File format also situates it within a broader family of Amiga disk image representations, helping knowledge bases and software systems classify and relate it to similar formats.

## Notable For
- Classified as a **disk image** format (a file that contains the contents and structure of a disk volume).
- **Based on** the *Amiga Disk image File (generic)* format.
- Commonly associated with the **`.adf`** file extension.
- Has a specified **hexadecimal identification pattern**: `444F5303`.
- The identification pattern is defined at the **beginning of the file** (offset **0**).

## Body
### Classification and Relationship
- Entity type: **file format**.
- Instance of: **disk image** (a computer file containing the contents and structure of a disk volume).
- Based on: **Amiga Disk image File (generic)**.

### File Extension
- File extension associated with the format: **`.adf`**.

### Identification Pattern (File Signature)
- Identification pattern: **`444F5303`**.
- Encoding: **hexadecimal**.
- Location: **beginning of file**.
- Offset: **0**.

### Reference Description Location
- Described at URL: https://en.wikipedia.org/wiki/Amiga_Disk_File

## References

1. [TrID](https://mark0.net/soft-tridscan-e.html)