Uppercase DCM Files cannot be imported

[tmyistanbul]

Uppercase DCM File extention cannot be imported
There was an issue when we try to import a study.
When a study made with entire uppercase DCM files weasis could load them to viewer.

To Reproduce
Steps to reproduce the behavior:

1. Have a dcm file with lowercase anydicom.dcm file
2. Change extention to ANYDICOM.DCM
3. Try to import the file
4. Noting been imported
5. Change the file back to anydicom.dcm
6. Try to import
7. File appears in study list

Desktop:

• OS: [Windows]
• Java Rutime: [1.8.0_291-b10]
• Weasis Version [3.7.0]

[nroduit]

The dcm extension helps to detect DICOM files but it seems your files don't have the magic number DICM.

To be a valid DICOM file it should contain "DICM" after 128 bytes, see https://www.iana.org/assignments/media-types/application/dicom

I can change to support also ".DCM" extension

[tmyistanbul]

@nroduit, Thank you for your reply. It will be helpful for us to support the .DCM extention. We are not able to intervene the pacs working internals. And tried other solutions like writing an intermediary program convert files to valid .dcm extensions. If you extend this feature we will be appreciate it.

[nroduit]

The extension is a secondary problem because often DICOM files do not have an extension. It is much more important that the files contain the DICOM signature.