Metadata Editing

I am kind of new to metadata for video.  I am very familiar with other forms of tagging especially for flac and other audio. 

To my question,  it appears that the metadata information generated by the Live is saved using an old version of xml to format the data.  My questions are:

a)  Will the live accept metadata formated in a current xml format? 

b) If not what are you using to edit xml?

c) If ti does accept newer XML do you have a template?

I have a fair number of TV shows and Cartoon collections stored as complete disks and the metadata is just not available in a format that is usable so I would like to work on creating my own when I have time.  Nothing fancy -just something

Hello, see if the following link helps.