Anyone knows how to identify a .iso file? Specifically, does this format have "identity marks" in the first bytes like MZ for .exe or RAR for .rar files?

Thanks

Hello godel !

A normal ISO file has no special marks. You can Identify most of them when the first 8000h bytes are 00h, the file size is divisible by 2048 and at 8000h (or at 53000h) it starts with 01h,"CD001",01h. If you have a RAW image, one sector is not 2048 but 2352 bytes long. This means the header is not located at 8000h but at 2048*16+16=9310h.

This only counts on Mode1 sectors, other sector types have other offsets and data.