I found this thread looking for a solution for my 9+ gig Publisher file with abut 100 linked PSD files. Evidently the same issue arises with psd file format and linked files as with aphoto files. This has to be a major bug. And at this stage, needing to convert 100 psd files to tiff is not comforting. Using version 1.7.3 – or should I hold my breath until 1.8 comes out? Update: since this was to be exported to a high res PDF anyway, I batch converted all psd files to full size jpegs and replaced all the links. File went from 9.9gb to 17.1mb. I'll run my own comparison tests when 1.8 comes out.