For background music I chose an mp3 of 2 minutes and 28 seconds.
When I'm in the preview menu, the music plays only for 18 seconds.
I do not understand why. I ask for help. Thank you W 10 64 , pc Dell XPS 8000 - core i7 2,8 GHz--ram 6 MB--GEFORCE GTX 1050TI 4GB - SSD 256 + 2x630--area Pal
Videocam: Panasonic SD 700 avchd
Pinnacle 14 - PD 9-13-17