ARE JPG IMAGES OF THE SAME QUALITY AS TIFF IMAGES?
Yes they are. However you should be aware that when using JPG images no degradation is noticeable after a single compression / decompression cycle, but that further compressions to and from the JPG format will begin to degrade the image to a point where it will become unusable. To retain the maximum quality, JPG images such as those received by E-mail should be opened and resaved as Tiff format.