Index: src/Imaging/Tiff.cs
===================================================================
--- src/Imaging/Tiff.cs	(revision 2849)
+++ src/Imaging/Tiff.cs	(working copy)
@@ -1804,8 +1803,13 @@
 
 		public string UserCommentValue {
 			get {
-				UserComment comment = new UserComment (raw_data, IsLittle);
-				return comment.Value;
+				try {
+					UserComment comment = new UserComment (raw_data, IsLittle);
+					return comment.Value;
+				} catch (Exception e){
+					Console.WriteLine(e);
+					return String.Empty;
+				}
 			}
 		}
 
