Why not MIF?

The question is rhetorical. There is no need to respond.

I just spent over an hour trying to print selected files from a book to the AdobePDF printer. FrameMaker 9.0p237 crashed seconds into the operation. I tried printing individual files in the book. I tried printing to file. All resulted in crashes. Yesterday printing was fine, except for some muddled PDFs, but no crashes.

Finally I saved each fm file in the mif format, opened the mif files, and saved each to fm. I also mifed the book file. I then opened the book, updated it a few times, and printed the selected documents to the AdobePDF printer. It worked just fine!

I have seen so many times on this forum the suggestion of cleaning files by saving them to mif and back to fm. If this is such a good process, maybe Adobe should consider making the mif format the standard format for FrameMaker files. I know that the file size is larger, but if it solves so many problems, why not! Or maybe FrameMaker's save process should include a background mif wash to minimize problems.