Filenames cannot exceed 8 characters.
The formal definition and content rules of the DICOMDIR object are strictly outlined in and Part 10 of the DICOM standard. 2.1 The File Format DICOMDIR
Filenames must be strictly uppercase without special characters. Filenames cannot exceed 8 characters
According to the specifications outlined by NEMA (National Electrical Manufacturers Association) , DICOMDIR follows standard Part 10 file structuring. It features a 128-byte preamble, followed by the letters "DICM" as a magic number, and a sequence of data sets. 2.2 Hierarchical Data Model DICOMDIR
The directory contains a specialized table of contents referencing the objects in the file-set. It operates on a strictly enforced four-tier hierarchical tree:
