Reference Source

Compressed ISO image — file signature 49 73 5A 21 at offset 0

For Compressed ISO image, hex signature is 49 73 5A 21; offset is 0; extension is isz, verified against its source on 2026-09-22.

Hex signature
49 73 5A 21 verified
Offset
0 verified
Extension
isz verified
Format
Compressed ISO image verified
Sourceen.wikipedia.org
Verified
Review by
DatasetFile format magic numbers

What the source says

49 73 5A 21 | IsZ! | 0 | isz | Compressed ISO image |

— en.wikipedia.org, retrieved 2026-09-22

Source

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.