El Torito

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File Format
Name El Torito
Ontology
Released 1995

El Torito is an extension of ISO 9660 format that specifies a standard way to make "bootable" CD-ROMs and DVDs. It was developed by IBM, and Phoenix Technologies.

Identification

One of the ISO 9660 volume descriptors begins with the byte sequence 0x00 "CD001" 0x01 "EL TORITO SPECIFICATION".

For the usual ISO 9660 file format, the sequence will appear at offset 32768+2048×k, for some smallish value of k≥0.

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