Thank you Pipeline for making this clearer. What I have noticed (?) is that the "Save As.." saves the MIDI tracks but not both the MIDI and the audio tracks (Realtracks)in seperate files whereas the "Save tracks to individual files..." saves both MIDI and audio at once (in seperate files).

Is it not possible to save the MIDI and audio tracks using "Save tracks to individual files.." into individual MIDI files that contain combined channels? i.e if the MIDI tracks are saved and opened in another sequencer then all the data from each track is available within single discrete tracks - just like the audio (my apologies if my MIDI terminology is lacking in trying to explain - this may mean a MIDI 101 course for me!)

Using "Save As...." twice or more(once for the MIDI tracks and once for the audio tracks) is not an issue but I am just curious about the two options.
Thank you