Lots of "Data Error"'s

As you can see in the following image, I have a bunch of "Data Error"'s but SARDU says that the ISO was successfully created. What do the errors mean and do I need to do any thing about them?


Multiboot USB and DVD creator customized with rescue disk, utility, linux live, windows installer
https://www.sarducd.it/forum/
https://www.sarducd.it/forum/english-forum/lots-of-data-error-s-t253.html