PS 3.10 defines a DICOM File ID Component as a string of 8 characters from a subset of the G0 repertoire of ISO 8859. Each of these File ID Components is mapped to a UDF File Identifier or Path Component in the OSTA CS0 character set.
Note: This mapping is a subset of the MS-DOS mapping specified in UDF.
Filename extensions are not used in DICOM File ID Components, hence a UDF File Identifier shall not contain a File Extension or the '.' that would precede such a File Extension.
The maximum number of levels of a Resolved Pathname in a UDF file-set shall be at most 8 levels, to comply with the definition of a DICOM File-set in PS 3.10.
The File Version Number is always equal to 1, as specified by UDF.
Note: This file ID mapping is also compatible with ISO 9660 Level 1.