If you try to compress a file that is already compressed (like zip, jpg, mp3, mpeg, wmv, etc.) you may end up with a file that is larger than the original, as the file can't be compressed further and the compression adds metadata. -- modified at 18:27 Tuesday 16th May, 2006 Note: GZip uses the same algorithm as Deflate, so you won't see any noteable differences in file size between them. --- b { font-weight: normal; }