No idea, sorry. Best would be to create a feature request within the MP1 forums.This looks very interesting indeed, and will no doubt be ready for the release of mp2 but thats a long way off yet, will this type of feature become available for mepo version 1.4.0 and above?
No, it's not. It's a problem with MKVTagger. Sometimes the xml isn't written into the mkv file. Just try again, normally it is saved then.. Before pressing save just copy the content of "New XML" to clipboard, just to be sure you'll have it again if needed.Is the problem maybe with XMedia Recode?