Use the FrameTime. The difference is that FrameTime is a Type 1C attribute, while CineRate is a Type 3 attribute. In general, Type 1 and Type 2 attributes take precedence over Type 3 attributes when interpreting a data set.
For the meaning of "Type", see
https://dicom.nema.org/medical/dicom/current/output/chtml/part05/sect_7.4.html
--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)