Using iSkysoft iMedia Converter Deluxe lastest version software to convert files to .mp4 and merge. There is a quick nano second gap between each merged file on playback. There is a setting to fix this and I simply can't recall if it is in Windows 10, the iRoad Wi-Fi software itself, the iSkysoft software or somewhere else. One of you experts out there has helped me with this 18 months ago. It seems to have 'unset' itself for some reason. Thanks in advance.