MAFF files are standard ZIP files containing one or more web pages, images, or other downloadable content. Additional metadata, like the original page address, is saved along with the content.

Unlike the related MHTML format, MAFF is compressed and particularly suited for large media files.

We ex­pect a kind of per­ma­nence to pub­li­ca­tions, which we don’t typ­i­cally ex­pect of web sites.