why are so many of my movies not being matched, or claiming to be matched with no metadata at all?

I recently switched from emby to plex and migrated ~500 movies. so far I have found ~50 with this issue and I’m about 2/3s the way through the library .
When I click match/fix match and just let it search, it is always the first result with the exact same title+year, maybe a - instead of a : occasionally.
all my movies are in this convention: M:\Movies itle year.ext

example problem media:
M:\Movies\Mission Impossible 1996.mp4
M:\Movies\Mission Impossible 2 2000.mp4
M:\Movies\Mission Impossible 3 2006.mp4
all matched to nothing at all but still claiming to be matched.

M:\Movies\Mr and Mrs Smith 2005.mp4

not matched at all.

The library was added about three days ago (storage upgrade with a clean windows install), and it has been scanned, refreshed metadata a few times since.

https://support.plex.tv/hc/en-us/articles/200381023-Naming-Movie-files
Every movie has to be be in its own folder. I see emby did not require this, but it would still accept the same structure.
When you are already at it, you can put the year in parenthesis :wink:

Example:
M:\Movies\Mission Impossible (1996)\Mission Impossible (1996).mp4

why a separate folder for each movie? its one file, maybe two if it has subs.
and why is this only an issue for 1/10th of the library?

Not true in the real world either; I have 600 odd films in one folder with minimal issues.

I also find that on a fresh scan, which I have not had to do for some time, it does miss about 10% or so of matches. I then find, like you, a manual search either works immediately or I have to fiddle with the year a bit.

The problem I think for me is that as a human I use IMDB for checking release years and titles but Plex doesn’t and then I have to remember to go check OMDB or whatever - and the Plex Movie DB is not visible to humans, which is also crap.

I do prefer Emby in this regard as it will accept the number ID for films and TV series from a number of sites. Easy.

Well this is the naming convention on which the Plex Media Scanner was built. I guess you have to live with it or match everything by hand. I find it more useful in terms of decluttering. There could be much more files with each movie: several subs for different languages, trailers, several extras, several cds for the actual movie, posters etc. To group them in one folder seems to be more reasonable to me.
The 1/10th seems to be a lucky find, why I worked on them I cannot tell you.

thats a feature I miss from embys media matching system. being able to point it directly at an entry on IMDB or others

@Darkassassin07 said:
thats a feature I miss from embys media matching system. being able to point it directly at an entry on IMDB or others

Just select “fix match” and search for name and year. That should give you the correct movie in 99 % of the cases. But I agree an IMDB/moviedb id search would be great for a more accurate match.
Btw: Plex uses themoviedb and not imdb to pull its metadata. So if you need to manually match you should do a search at themoviedb for the respective info. Plex is sometimes picky when it comes to the correct name of the movie.

If I put multy part movies (several video files labeled part 1,2,ect) into a folder (m:\movies itle (year)\files) will plex stitch them together/ play sequentially during playback?

If you have no extras (deleted scenes, etc) that you don’t want lumped in with every other movie in the folder, you could put them all in one. It’s not advised but it will work. The format of the name does matter Name (Year).ext

This is why you need folders for movies. https://support.plex.tv/hc/en-us/articles/200220677-Local-Media-Assets-Movies

Should you get FileBot or TheRenamer, thousands of items can be renamed perfectly in minutes. It looks up the title and applies the renaming template. If the template specifies a directory, it will create the directory for you as well.

e.g. /nas/movies/{n} ({y})/{n} ({y}) - The file extension is carried to the file only. The directory is the as-published name.

Performing these steps results in no missing metadata / mismatched issues.