https://www.os2museum.com/wp/the-ihc-damage/
https://jeffpar.github.io/kbarchive/kb/148/Q148637/
jdebp touches the matter on the page on (previous) messing up with bootsectors by MS-DOS:
http://jdebp.info/FGA/volume-boot-block-oem-name-field.html
(but those DOS ones were only about not trusting the BPB fields, not about corrupting the OEM field)
https://www.os2museum.com/wp/the-ihc-damage/
https://jeffpar.github.io/kbarchive/kb/148/Q148637/
jdebp touches the matter on the page on (previous) messing up with bootsectors by MS-DOS:
http://jdebp.info/FGA/volume-boot-block-oem-name-field.html
(but those DOS ones were only about not trusting the BPB fields, not about corrupting the OEM field)