How many trailers can I add
How many local trailers can I add for a film?
Trailers can only be searched and stored for AMC XML databases. However, you can link to the Online Videos plugin to play IMDb, YouTube or Apple Trailers. Local trailers are not often exported by other catalog types and thus not imported to MyFilms. If your catalog type supports trailers, and exports the trailer file name(s) to XML, you may request support for it. See Support under Feature Requests.
For AMC catalog types, you can store as many trailers as you like, even those you download from within My Films in MediaPortal. See the Trailer Setup guide for details.