IEEE templates for Transaction journals I am trying to figure out which template to use for the journals

IEEE Transactions on Pattern Analysis and Machine Intelligence

and 

IEEE Transactions on Multimedia

Both are journals published by IEEE comsoc, but both also are transactions. 

On the IEEE template info page I find separate template for both of them:

http://www.ieee.org/publications_standards/publications/authors/author_templates.html
If you downoload the templates for Communications Society Journals and open the README, you will find the following note


  This package contains the IEEE Communications Society subset of the full
  IEEEtran package and is intended for use with IEEE Communications Society
  publications. The included version of the IEEEtran_HOWTO.pdf has been
  specially formatted in IEEE Communications Society (comsoc) journal mode.


and the disclaimer


  NOTE: Take care not to confuse the "comsoc" and "compsoc" class options/modes as they are very different:
  
  comsoc  ==> IEEE Communications Society 
  
  compsoc ==> IEEE Computer
  Society


The IEEE Transactions on Pattern Analysis and Machine Intelligence is not published by the IEEE Communications Society but by the IEEE Computer Society (compsoc). Thus, I think that for this you should use the templates for Computer Society Journals.

The IEEE Transactions on Multimedia seems to be published by both societies and by others too. The IEEE Transactions on Multimedia home page links at the information for authors page which further links to the author digital tools page, but saying (bold mine):


  The style files are available on the web at the IEEE Author Digital
  Toolbox (link is external) under "Template for all Transactions."
  (LaTeX and MS Word).