i would like to do everything i am doing now but all in jriver in one shot. basically able to import music from a folder do all the tagging in jriver and then transfer to the folders.... unless i do this i make new folders like the scheme i have now. so i have 4 folders where the final files move to after being tagged and transferred by jriver. they are greek music, music, flac music, and flac greek.
I also have a directory tree structure that groups certain types and styles of music together.
What I did to accomplish that is create a custom field (tag) within Media Center. Call that new field something like "FOLDER_LOCATION".
That "FOLDER_LOCATION" field will be set to what folder that album belongs in.
In your case the FOLDER_LOCATION tag for the entire album would be set to Greek Music, Music, FLAC Music, or FLAC Greek.
Then use the value of that tag to set the name of that folder in your directory name rule in Media Center.
So your directory naming rule in Media Center would be something like "[Folder Location]\[Album Artist (auto)]\[Album]" plus an expression to account for Disc # for multi-disc albums. Otherwise multidisc albums will end up all in the same folder which gets confusing.
So I would use a directory naming expression more like "[Folder Location]\[Album Artist (auto)]\[Album]IfElse( !IsEmpty( [Disc #], 1 ), -PadNumber([Disc #],2))" to add the Disc # to the folder name if there is a Disc #.
Using "Album Artist (auto)" instead of just "Artist" will also help group the albums together better. Otherwise albums with multiple artists will end up in multiple folders and that's a mess.
MC has great tools and features to add custom fields (custom tags).
Tools >> Options... >> Library & Folders >> Manage Library Fields...
You can create custom fields (tags) that get saved to the files. Once those fields are written to the file they can also be read and edited in Mp3Tag (you'll have to go to "File >> Options.. >> Tag Panel" to add the new custom tag to Mp3Tag, but it very much can edit and display custom tags created in MC).
I would also suggest using the Rename, Move, & Copy Files dialog in MC to move and copy files you import to MC, instead of relying on the way the Auto Import is able to move files as it imports. The "Rename, Move, & Copy Files" dialog is much more powerful and includes an option for "Move all non-imported files in folder with selected media files". Which will copy over all other other files you have in the album folder, including log files, txt files, pdf files, jpg files, png files, and other files that should be copied over to the same folder that the album track files are. The Auto Import method does not do that. The "Rename, Move, & Copy Files" method can do that. The "Rename, Move, & Copy Files" dialog is the better way to move the files to your directory tree structure.
And before playing with any of these file moving suggestions. Do a mirror style backup of all of your music files to another hard drive. So you have a fresh backup. And then when trying any new move or copy rules in MC do a test on a few albums first to see if it works as you expect. Then try again on a few more albums before trying the new rules on the entire library. But most importantly, please have a current full backup of your music files on another drive before experimenting with these kinds of renaming and moving rules.