ANSI/NISO Z39.86 Validator - ZedVal
ZedVal, also known as the ANSI/NISO Z39.86 Validator, is a DAISY 3 content validator. It is an open source development project, and is available free of charge to everyone. It is designed to validate Audio NCX books to support their conformance with DAISY 3, officially the ANSI/NISO Z39.86 Standard.
Latest Release: ZedVal 2.1
This version fixes an issue that caused books containing the MathML 'annotation' element to be incorrectly reported as invalid.