---
type: lookup
id: mgw-6d-61-69-6e-2e-62-73
asset: file-format-signatures
title: "6D 61 69 6E 2E 62 73 — File format magic numbers"
sources:
  - https://en.wikipedia.org/wiki/List_of_file_signatures
source_quote: "44 30 30 31 | CD001 | 0x5EAC9 | cdi | CD-i CD image file | 6D 61 69 6E 2E 62 73 | main.bs | 0 | mgw | Nintendo <https://en.wikipedia.org/wiki/Game_&_Watch> Game & Watch image file | 4E 45 53 | NES | 0 | nes | <https://en.wikipedia.org/wiki/Nintendo_Entertainment_System> Nintendo Entertainment System image file | A0 32 41 A0 A0 A0 | 2A | 0x165A4 | d64 | <htt"
generated: true
verified: false
harvested: 2026-08-03
stale_after: 2027-08-03
hex_signature: "6D 61 69 6E 2E 62 73"
offset: "0"
extension: "mgw"
format: "Nintendo Game & Watch image file"
unverified_fields: format
---
**Hex signature:** 6D 61 69 6E 2E 62 73

**Offset:** 0

**Extension:** mgw

**Format:** Nintendo Game & Watch image file

>  44 30 30 31 | CD001 | 0x5EAC9 | cdi | CD-i CD image file | 6D 61 69 6E 2E 62 73 | main.bs | 0 | mgw | Nintendo <https://en.wikipedia.org/wiki/Game_&_Watch> Game & Watch image file | 4E 45 53 | NES | 0 | nes | <https://en.wikipedia.org/wiki/Nintendo_Entertainment_System> Nintendo Entertainment System image file | A0 32 41 A0 A0 A0 | 2A | 0x165A4 | d64 | <htt

Source: <https://en.wikipedia.org/wiki/List_of_file_signatures>