diff --git a/ChangeLog.txt b/ChangeLog.txt
index f8b391a7..11c9a77d 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -1,3 +1,13 @@
+Significant changes since 1.0.90
+================================
+
+[1] Since the fast integer forward DCT seems to degrade for JPEG qualities
+greater than 95, TurboJPEG/OSS will now automatically use the slow integer
+forward DCT when generating JPEG images of quality 96 or greater.  This
+reduces compression performance by as much as 15% for these high-quality images
+but is necessary to ensure that the images are perceptually lossless.
+
+
 Significant changes since 1.0.1
 ===============================
 
diff --git a/turbojpegl.c b/turbojpegl.c
index 9dd6eb66..58f96273 100644
--- a/turbojpegl.c
+++ b/turbojpegl.c
@@ -193,7 +193,8 @@ DLLEXPORT int DLLCALL tjCompress(tjhandle h,
 		jpeg_set_colorspace(&j->cinfo, JCS_GRAYSCALE);
 	else
 		jpeg_set_colorspace(&j->cinfo, JCS_YCbCr);
-	j->cinfo.dct_method = JDCT_FASTEST;
+	if(qual>=96) j->cinfo.dct_method=JDCT_ISLOW;
+	else j->cinfo.dct_method=JDCT_FASTEST;
 
 	j->cinfo.comp_info[0].h_samp_factor=hsampfactor[jpegsub];
 	j->cinfo.comp_info[1].h_samp_factor=1;