when i try and render an iphone 3gs movie - the audio is great but the video seems speeded up an is out of sync faster than the audio

can you please help

i have tried researching transcode settings and have read about the iphone format having variable frame rate

please can you help as I love kdenlive but at the moment an unable to use it for editing my footage

thanks

SOLVED - I used pitivi to convert to another format and then I used KINO to edit.