If the video file is already in iTunes and it tells you that it can't be played on this device. iTunes will convert it for you, no reason to have to re-encode it in Handbrake. Now it does take some time. All you have to do is right click on the file and choose "Convert for iPod". Quality is good (maybe not as good if you had encoded on the iPhone setting in Handbrake, but most videos look amazing on the iPhone anyway) Just remember next time you go to encode a video w/ Handbrake to select the iPhone setting.