Trying to convert old family videos from DV camcorder that are in AVI format, to mp4 (highest quality). When the conversion process reaches 4 minutes and 56 seconds the conversion dialog speeds up and quickly finishes as if the conversion is complete. However, when playing the converted video it only plays up to the 4:56 mark, then the screen is filled with a multi-color pixelated pattern. This same outcome happens with other AVI files. It also happens when the default quality setting is selected.