Since Wintal PVR videos (.pvr) are nothing more than MPEG video, it should be quite possible to convert PVR to AVI, or even other multimedia formats. You can use the DVR Converter for this particular multimedia conversion.
Convert Wintal PVR video file to Audio Video Interleave movie.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert pvr to avi on Windows
A Video converting tool forWindows
Convert from pvr 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.