RE: question for hive-mind viz. Apple error message on valid epub

> that has passed validation through epubcheck but is being rejected by Apple

 

Just to address this part, video codec support is not a requirement in epub 3. You can add any video type you want, but there’s no guarantee a reading system will play it back. Apple has always supported mp4, so that would be why they have different acceptance rules from a general epubcheck validation.

 

Maybe in the upcoming epub revision we should take another look at this issue and see if we can break the stalemate and at least get one supported codec? I don’t know where webm support is at, but isn’t mp4 pretty broadly supported now?

 

Matt

 

From: kerscher@montana.com <kerscher@montana.com> 
Sent: December 19, 2024 2:18 AM
To: 'Ruth Tait' <artbyrt@gmail.com>; public-epub3@w3.org
Subject: RE: question for hive-mind viz. Apple error message on valid epub

 

Hi,

 

Might it be the webm files? They may have changed what they accept, because you say you submitted them in the past. Was the size of the video a problem? Large video files have been known to cause rejections.

 

Let us know how the problem is resolved.

 

Best

George

 

 

From: Ruth Tait <artbyrt@gmail.com <mailto:artbyrt@gmail.com> > 
Sent: Wednesday, December 18, 2024 5:28 PM
To: public-epub3@w3.org <mailto:public-epub3@w3.org> 
Subject: question for hive-mind viz. Apple error message on valid epub

 

Hello epub 3 experts,

 

Our small publishing group is attempting to upload to a distribution org an epub that has passed validation through epubcheck but is being rejected by Apple with this message:

 

"The provided file has failed validation at Apple. As a result, Apple cannot process any metadata/content updates or activate this content for sale without action on your part. Please validate the ePub and correct any errors or issues detailed below:

 

ERROR ITMS-9000: The video file(s) in the book must be H.264 and end with a .MP4 or .M4V file extension. More information about video encoding can be found in the Apple Books Asset Guide in the Deliver Your Content module on iTunes Connect. Unsupported file found : video/unapologetically-jackie-h264-360p-2398-stereo-121222-vs6ntw.webm"

 

The videos provided within the book are .mp4 and .webm formats. I have previously submitted to Apple similar books with embedded video without an issue. Searching for more information on the FLAG ERROR ITMS-9000 doesn’t give me any more enlightenment to the problem.

 

Anyone have an idea what could be the issue?

 

 

ruth tait
https://www.artbyrt.com
O: 613 604 2781