Whenever you make a new backup from a .mvp project in Movie Edit Pro, a new file with .mv_ extension will be saved for backup purposes. As far as we know, this is the only way how you can achieve this mvp to mv_ conversion.
Convert Movie Edit Pro video project file to Magix Movie Edit Pro movie backup file.
We found one software available in the database for this conversion.
Microsoft Windows software - convert mvp to mv_ on Windows
A video editting software
Convert from mvp 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.