Multiple hosters, import via external hd

[mrmacjr]

I have purchased three hoster programs for my karaoke shows, at present i have been importing each disc into each show, that makes triple the work. Can i used my external hard drive to import the new discs into each computer and if so does it affect the book id#? I did import some kma via the external hard drive and they seem to be there but it did not advande the book id#. any suggestions thanks it sure would save a lot of time!!!