260f542b__to_Good_Practice__RasterImg_2__Recommendations
[Format] .jpg / .jpeg [Properties/Technologies] An ISO standard format developed by the Joint Photographic Expert Group [Description] The JPG format was primarily designed for photographic or painted images with smooth varying tones. The format offers 32-bit colour depth and extremely efficient lossy compression algorithms. JPEG also allows EXIF and IPTC metadata to be embedded within the file. [Recommendations] 
Although JPG files are usually drastically smaller than their TIF or PNG equivalents, the use of lossy compression makes them unsuitable for long-term storage. Where compression is required, data creators are advised to use the JPEG2000 format with lossless compression.
Guides to Good Practice: RasterImg_2
Recommendations