Converting .mov to .mp4

Out of the 11 videos this program effectively and very efficiently converted 9 of my videos into mp4’s!!!! I am very satisfied. Unfortunaqtely I don’t know why the last two when loaded into the converter wouldn’t show video footage. I decided at first that a preview wasn’t necessary but it only converts the audio to mp4 :( The files I’m using can play/be seen as .mov, wonder why it doesn’t want to convert that same footage (as the other 9) into mp4’s.

CA Peach about Free MP4 Converter