1. JPEG stands for joint photographic expert group and MPEG stands for motion picture expert group.
2. JPEG is used for picture compression and MPEG is used for video compression.
3. JPEG typically achieves 10:1 compression with little perceptible loss in image quality, whereas compression ratio in MPEG is 30:1 for general video using H.263 and 50:1 for general video using H.264/MPEG4.
4. JPEG and MPEG both uses lossy compression.