The best balance content would be 576P (720×576), this is because typically a 576p H.264 MP4 video will run on any machine but you may wish to create higher resolution Videos. Below is a list of the recommended Bit rate for each HD video in your store.
640×480 H.264 MP4 1200K bps Video (CABAC) 128Kbps Audio (480p)
720×576 H.264 MP4 1650K bps Video (CABAC) 128Kbps Audio (576p)
1280×720 H.264 MP4 2750K bps Video (CABAC) 160Kbps Audio (720p)
1920×1080 H.264 MP4 4200K bps Video (CABAC) 128Kbps Audio (1080p)
To create a custom profile in powerdirector 15 after clicking produce select h264, then MP4 and click add.

Then simply click Video and Audio respectively and input the parameters shown above.
