Hello. You're correct that there's no precompiled binary of the ubt program on that site. However, you can download the source and compile it yourself. Alternatively, you can Visit the following url for a link to a prepackaged utility which includes ubt at its core for using the Book Port with the Macintosh. -thanks -Brian Linkname: FreeLists / macvoiceover / [macvoiceover] BookTransfer (UBT) for MacOSX URL: //www.freelists.org/archives/macvoiceover/01-2007/msg00077.html