I’m not sure. Andrew Maudsley (@amaudsley) did post the package on here a couple of years ago: [code submission] midas mrsi - #2 by admin but the link there is dead as you say. You could try contacting him via his Miami webpage if you are sure that the data is from the MIDAS package. https://umiamihealth.org/en/sylvester-comprehensive-cancer-center/research/faculty/andrew-a-maudsley-phd