Roxio Creator 2012 program should be able to re-save/convert its own DMSS projects to PSPD format.
Convert Roxio Creator VideoWave slideshow project file to Roxio PhotoSuite project file.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert dmss to pspd 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.