I just got my Tivos and primarily want to convert my downloaded .TiVo files so I can watch them on my iMac, or later upload them to TiVos for watching later after the original TiVo movie was deleted. Any apps recommended? Plus, I work on my iMac and for Mac2Tivo and I need to convert my .TiVo files which are 1920x1080 to 1280x720 to save room. As you see, uses usually have Tivo playback pro...