diff --git a/console/nii_dicom.cpp b/console/nii_dicom.cpp
index 5aa8db7e..f42f5fd1 100644
--- a/console/nii_dicom.cpp
+++ b/console/nii_dicom.cpp
@@ -5826,6 +5826,8 @@ const uint32_t kEffectiveTE = 0x0018 + uint32_t(0x9082 << 16); //FD
 			d.accelFactPE = accelFactPE;
 			break;
 		case kAcquisitionDuration:
+			if (!isSameFloatGE(d.acquisitionDuration, 0.0))
+				break; //issue 808: give precedence to more precise measures, e.g kAcquisitionDurationGE (0019,105a)
 			//n.b. used differently by different vendors https://github.com/rordenlab/dcm2niix/issues/225
 			d.acquisitionDuration = dcmFloatDouble(lLength, &buffer[lPos], d.isLittleEndian);
 			break;
diff --git a/console/nii_dicom_batch.cpp b/console/nii_dicom_batch.cpp
index 7eb6d206..a07fe3df 100644
--- a/console/nii_dicom_batch.cpp
+++ b/console/nii_dicom_batch.cpp
@@ -2256,11 +2256,6 @@ tse3d: T2*/
 	// FSL definition is start of first line until start of last line.
 	// Other than the use of (n-1), the value is basically just 1.0/bandwidthPerPixelPhaseEncode.
 	// https://github.com/rordenlab/dcm2niix/issues/130
-	if (d.manufacturer == kMANUFACTURER_GE){ //issue808
-		char acquisitionDurationbuffer[50];
-		sprintf(acquisitionDurationbuffer, "%02d:%02d",(int)round(d.acquisitionDuration)/60,(int)round(d.acquisitionDuration)%60);
-		json_Str(fp, "\t\"AcquisitionDurationGE\": \"%s\",\n", acquisitionDurationbuffer);
-	}
 	if (d.manufacturer != kMANUFACTURER_UIH) //issue606
 		json_Float(fp, "\t\"AcquisitionDuration\": %g,\n", d.acquisitionDuration);
 	if ((d.manufacturer == kMANUFACTURER_UIH) && (effectiveEchoSpacing <= 0.0)) //issue225, issue531