These differences mean that many HFS filenames are illegal in ISO 9660 or High Sierra format. This may cause problems in an application that depends on hard-coded filenames. For example, Hypercard requires that the home stack be named HOME, but this is illegal in ISO 9660 and High Sierra. The legal ISO 9660 or High Sierra name is HOME.;1, which won't be found by Hypercard. Some versions of Videoworks depend upon sounds being in a file named Sounds. The only solution is to have the user copy such files over to an HFS volume and rename them.