Patch 7074 was incorporated,
http://www.rockbox.org/tracker/task/7074This enables one to specify which files you don't want scanned,
my directory structure is a follows;
Music
/- Classical -
/- Party Mix -
Aritist - Album
Aritist - Album
Aritist - Album
Aritist - Album
etc.......
The syntax which I used to exclude my Classical and Party Mix directories from the Random scan was as follows
-/Music/- Classical -
-/Music/- Party Mix -
Music
To get random folder to work, after generating the list via the plugin, you need to enable it in;
Settings > General Settings > Playback > Auto-Change Directory > select "Random"
to initiate random play, go to a album, get it to play by right clicking on that album twice, that's known as "directory play".
"Inserting" a album via a playlist won't activate random album playback.
any corrections to the above are welcome.