Reference Source

VirtualBox Virtual Hard Disk file format — file signature 3C 3C 3C 20 4F 72 61 63 6C 65 20 56 4D 20 56 69 72 74 75 61 6C 42 6F 78 20 44 69 73 6B 20 49 6D 61 67 65 20 3E 3E 3E at offset 0

For VirtualBox Virtual Hard Disk file format, hex signature is 3C 3C 3C 20 4F 72 61 63 6C 65 20 56 4D 20 56 69 72 74 75 61 6C 42 6F 78 20 44 69 73 6B 20 49 6D 61 67 65 20 3E 3E 3E; offset is 0; extension is vdi, recorded from its source on 2026-08-03.

Hex signature
3C 3C 3C 20 4F 72 61 63 6C 65 20 56 4D 20 56 69 72 74 75 61 6C 42 6F 78 20 44 69 73 6B 20 49 6D 61 67 65 20 3E 3E 3E
Offset
0
Extension
vdi verified
Format
VirtualBox Virtual Hard Disk file format verified
Sourceen.wikipedia.org
Verified
Review by
DatasetFile format magic numbers

What the source says

vdi | <https://en.wikipedia.org/wiki/VirtualBox> VirtualBox Virtual Hard Disk file format

en.wikipedia.org, retrieved 2026-08-03

Source

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