Reply to thread

Please check the wiki.

I never take online sources but perform offline imports. You can use external tools for that and change all data including poster. Also the import speed is much faster + the local data are kept forever, even MP2 is removed. To overwrite only some movies you need to remove them once from the share, place an import (so the importer will recognize them later as new) and place them back (with the offline data as explained in wiki) and perform another import (with online sources deactivated).

There are also other ways, but above is the easiest, others are tweaks by changed files in cache, I do not recommend it.

Edit: after an offline import you could also activate online sources again. Existing files would be never overwritten.