Then , to my surprised , those photos were recorded in JPEG format . I was saddened that I did not check the settings prior to taking those photos . There were probably a hundreds or more photos recorded in JPEG format . Later , I checked the sequence number of those images by scrolling down , hoping there were some RAW being recorded , sorted at the bottom of the list .

Question: Why was I surprised at the photos being recorded in JPEG format ?
Answer: The files are compressed and low quality .I was saddened .None of the above choices .There were probably a hundreds or more photos recorded .