- abc.gif (image/gif)
- GIF (Graphics Interchange Format), widely used for bit map images, lossless,
patents on compression algorithms ran out July 2004. Owned by Compuserve.
- abc.png (image/png)
- PNG (Portable Network Graphics), similar to GIF but handles wider range of
images with better colour support, more efficiently compressed. image/x-png is still used incorrectly
by some servers. ISO standard
- abc.jpg abc.jpeg (image/jpeg)
- JPEG (Joint Photographic Experts Group) widely used for transmitting real world
images, lossy compression. Some patent problems. ISO standard.
- abc.mpeg abc.mpg (application/mpeg)
- MPEG (Moving Picture Experts Group) for transmitting video. High compression,
lossy and only transmits changes from one frame to the next. ISO Standard
- abc.cgm (image/cgm)
- CGM (Computer Graphics Metafile) ISO standard for transmitting line drawings.
- abc.svg (image/svg+xml)
- SVG (Scalable Vector Graphics) similar to CGM but application of XML.
- abc.swf (application/x-shockwave-flash)
- SWF (Small Web Files), Adobe/Macromedia proprietary format used by Flash etc
