Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Level 1

4 points

Keynote 10 Cannot insert video in presentation

In an old presentation an inserted video .mov file wont play. I also cannot insert a new video and get the error "cannot decode" Same problem with a mp4 video

MacBook Pro 13″, macOS 10.15

Posted on Jun 20, 2020 6:24 AM

Best reply

Gary Scotland

Level 7

25,856 points

Posted on Jun 20, 2020 8:04 AM

Catalina can only accept 64 bit applications and media files, therefore some older filetypes are no longer compatible, check the list here: incompatible media in Catalina

The only video filetype that can use alpha channel with Catalina is Apple Prores 4444

View in context

Keynote 10 Cannot insert video in presentation

Similar questions