If you actually have a truncated filename and want to find or verify the full name (e.g., from a download or metadata), you’ll need to check the original source, as the P... could be Part1 , P2P , or even a typo of -P for a group.
MatureNL.23.07.19.Petra.X.XXX.1080p.HEVC.x265.P... MatureNL.23.07.19.Petra.X.XXX.1080p.HEVC.x265.P...
It looks like you’re trying to complete a filename that follows a common for HD video files. If you actually have a truncated filename and
The most logical completion would be:
MatureNL.23.07.19.Petra.X.XXX.1080p.HEVC.x265.P2P.mkv from a download or metadata)
or ...Petra.X.XXX.1080p.HEVC.x265.MeGusta (or another release group)
Based on the pattern you provided: