Roxio Creator projects (*.dmss) can be exported to several multimedia formats including the MP4. There probably is no other way to otherwise perform DMSS to MP4 conversion.
Convert Roxio Creator VideoWave slideshow project file to MPEG-4 video file format.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert dmss to mp4 on Windows
Roxio Creator is set of tools used to burn CDs, DVDs and Blu-ray discs
Convert from dmss 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.