All of my music resides on an external drive which is shared between the two OSs on my computer; OSX and Windows 8.1. All of my metadata has been entered through iTunes on the mac side of things. So, until I recently decided to abandon it and go JRiver for both OSs, I have been importing the already tagged music into JRiver for Windows (including having JRiver do a song analysis) without giving JRiver the permission to write to the external drive. But this gave me the result I wanted which was the original drive left untouched and the data library on the Windows partition including the song analysis for volume leveling. But for the recurring tagging error messages telling me the info can't be written to the drive, this solution has worked well.
Now, however, since I am going JRiver exclusively, I do want that analysis info added to the tags. So, the question is: is there a good way to have the song analysis info that resides in the JRiver library embedded into the songs on the hard drive without having to redo the analysis of all the songs on the drive?
Re-doing the entire analysis would be very time consuming, as the first time I did so took almost eleven days (analyzing two songs at a time) so it is something I would prefer to avoid.