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I've seen a file called [BOOT]/Bootable_NoEmulation.img on several boot images, and always wondered what it's use is. Neither found a suitable magic number nor could Google help me so I ask here.

It's 2048 bytes large but only the first 560 bytes are filled, the rest is full of zeros - except for the footer.

What's the use of it, seems to me some kind of a placeholder or workaround to comply with some RFCs or other standards.

I just pasted a hexdump here.

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If your image is CD/DVD, that is the floppy emulation image for the BIOS to boot the disc. Don't have further technical information, though. – Alvin Wong Mar 17 '13 at 15:10

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