Both *.ncd files (images) and *.nct files (templates) originate from Nero CoverDesigner and it is the only program capable of saving one to another. This one is is used when a new template is created from some of the already existing CoverDesigner images.
Convert Nero CoverDesigner image format to Nero CoverDesigner template file.
We found one software available in the database for this conversion.
Microsoft Windows software - convert ncd to nct on Windows
A design tool used to create custom labels, inlays, and booklets for CDs, DVDs
Convert from ncd file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.