Adding this into their list of compatible file formats gives this reader an edge over the others. (goodereader.com)
Book Creator created ePub 3 compatible files for me. (bookcreator.com)
When an eBook credit is used and CircularFLO is run in «live mode» all pages have their watermarks removed and a validated EPUB3 and KF8 compatible file is created that is ready for distribution and sale. (circularflo.com)