PNG files are as stable as GIF files and compress in such a way that they're not as large and they can use more colors. JPG files are "lossy," or they can lose detail. Several years ago I picked up a book that was a guide to PNG, GIF and JPEG files. I remember at the time thinking I'd like to change over to PNG files, but they weren't much used then. Now whenever I work with a PNG file I see it is associated with Macromedia software, so I guess this technology has arrived.

SRS