Hello,
If you look at the link I posted it says PowerProducer 6 supports "
MPEG-4 AVC (H.264)" files. The first part is the container MP4, and the last part is the codec. Just keep in mind that not all MP4 files have the same codec, which is the important part.
Yes you can convert your files. Just make sure they are converted with the H.264 codec. You can use CyberLink's
MediaEspresso or a free program like HandBrake (just Google it).
David