Action on Multimedia

I'm a fairly new user of Lectora. So I apologize for my question. I have actions set on multimedia. So for example, when one .mov is done playing, I have it set to play the next set. But as I try to publish, I get the error "Action on Multimedia object may not work correctly in browser". Can someone elaborate on this as to why it won't work correctly?I'm a fairly new user of Lectora. So I apologize for my question. I have actions set on multimedia. So for example, when one .mov is done playing, I have it set to play the next set. But as I try to publish, I get the error "Action on Multimedia object may not work correctly in browser". Can someone elaborate on this as to why it won't work correctly?