Understanding Graphic File Formats
A user has reported that the URL we had indexed no longer works properly.
This link is offline until a volunteer finds a new, valid URL for the work and updates our site.

Ray, Eric J.
TECHWR-L
2000

Abstract:

Identifying and fixing problems with graphics often comes down to a brief reminder of what the various kinds of graphic formats are and how to use each of them when they're the most appropriate--not merely most convenient--for the situation.