Answer 1: In general, the file size of captured image depends on which image size and quality you have selected. Since the image size may vary depending on scenes and subjects, these are approximate values only. Image size 2560x1920 / 1600x1200 / 1280x960 / 640x480 Std: 1.5MB / 660KB / 460KB / 240KB FINE: 2.5MB / 1.0MB / 720KB / 320 KB X.FIN: 4.8MB / 1.9MB / 1.3MB / 420KB Super Fine: 14.2MB / 5.6MB / 3.6MB / 1.0MB RAW: 9.6MB Movie: 297KB/s Answer 2: <> The approximate compression ratio in each quatliy mode is as below. Super Fine: 1/1 X.FIN: 1/2.5 Fine: 1/4 Std: 1/8 Movie: 1/10 Voice Record: 8KB/s