a) there's no need to copy everything back and forth to convert a HDD from WBFS to FAT32 (sig)
unless you already formated you can still save yourself half the trouble
b) there are two file formats that can be used on normal HDDs
.iso which is normally 4.7GB and .wbfs which is normally much smaller (same as on a WBFS partition)
WBM can use both, there should be a config option or something like it
iirc the default is to create .wbfs files, so maybe you already changed it
unless you already formated you can still save yourself half the trouble
b) there are two file formats that can be used on normal HDDs
.iso which is normally 4.7GB and .wbfs which is normally much smaller (same as on a WBFS partition)
WBM can use both, there should be a config option or something like it
iirc the default is to create .wbfs files, so maybe you already changed it