To prevent Mediascanner from scanning files on an external hd, add a .nomedia file as described in comment 8.
It will also be slow to scan only the first time. Once it has scanned the directories, it caches the results and does not do it again, even if you unplug and replug your drive.
To prevent Mediascanner from scanning files on an external hd, add a .nomedia file as described in comment 8.
It will also be slow to scan only the first time. Once it has scanned the directories, it caches the results and does not do it again, even if you unplug and replug your drive.