diff --git a/CUETools.Codecs.FLAKE/FlakeWriter.cs b/CUETools.Codecs.FLAKE/FlakeWriter.cs
index 2eb6304..8145bef 100644
--- a/CUETools.Codecs.FLAKE/FlakeWriter.cs
+++ b/CUETools.Codecs.FLAKE/FlakeWriter.cs
@@ -2257,17 +2257,33 @@ new int[] { // 30
 			_totalSize += fs;
 
 			if (verify != null)
-			{
-				int decoded = verify.DecodeFrame(frame_buffer, 0, fs);
-				if (decoded != fs || verify.Remaining != bs)
-					throw new Exception(Properties.Resources.ExceptionValidationFailed);
-				fixed (int* s = verifyBuffer, r = verify.Samples)
+				try
 				{
-					for (int ch = 0; ch < channels; ch++)
-						if (AudioSamples.MemCmp(s + ch * Flake.MAX_BLOCKSIZE, r + ch * Flake.MAX_BLOCKSIZE, bs))
-							throw new Exception(Properties.Resources.ExceptionValidationFailed);
+					int decoded = verify.DecodeFrame(frame_buffer, 0, fs);
+					if (decoded != fs || verify.Remaining != bs)
+						throw new Exception(Properties.Resources.ExceptionValidationFailed);
+					fixed (int* s = verifyBuffer, r = verify.Samples)
+					{
+						for (int ch = 0; ch < channels; ch++)
+							if (AudioSamples.MemCmp(s + ch * Flake.MAX_BLOCKSIZE, r + ch * Flake.MAX_BLOCKSIZE, bs))
+								throw new Exception(Properties.Resources.ExceptionValidationFailed);
+					}
+				}
+				catch (Exception ex)
+				{
+					//if (channels == 2)
+					//{
+					//    var sw = new WAVWriter(string.Format("verify_{0}.wav", this.frame_count), new WAVWriterSettings(this.Settings.PCM));
+					//    sw.FinalSampleCount = this.frame.blocksize;
+					//    var ab = new AudioBuffer(this.Settings.PCM, this.frame.blocksize);
+					//    ab.Prepare(this.frame.blocksize);
+					//    fixed (int* abs = ab.Samples, s = verifyBuffer)
+					//        AudioSamples.Interlace(abs, s, s + Flake.MAX_BLOCKSIZE, this.frame.blocksize);
+					//    sw.Write(ab);
+					//    sw.Close();
+					//} else
+					throw ex;
 				}
-			}
 
             if (bs < m_blockSize)
 			{
diff --git a/CUETools.Codecs/LPC.cs b/CUETools.Codecs/LPC.cs
index 89064f9..35ba011 100644
--- a/CUETools.Codecs/LPC.cs
+++ b/CUETools.Codecs/LPC.cs
@@ -754,7 +754,6 @@ namespace CUETools.Codecs
 						long pred = coefs[2] * (long)*(s++);
 						pred += c1 * (long)*(s++);
 						pred += c0 * (long)*(s++);
-						*(r++) = *s - (int)(pred >> shift);
 						int d = *(r++) = *s - (int)(pred >> shift);
 						sum += (uint)((d << 1) ^ (d >> 31));
 						s -= 2;
diff --git a/CUETools/CUETools.TestCodecs/hires1.flac b/CUETools/CUETools.TestCodecs/hires1.flac
new file mode 100644
index 0000000..1045457
Binary files /dev/null and b/CUETools/CUETools.TestCodecs/hires1.flac differ