diff --git a/base64decode.m b/base64decode.m
index 2580c78..5e69a7d 100644
--- a/base64decode.m
+++ b/base64decode.m
@@ -14,7 +14,9 @@
 % License : BSD, see LICENSE_*.txt
 %
 
-error(nargchk(1, 1, nargin));
+if(nargin==0)
+    error('you must provide at least 1 input');
+end
 error(javachk('jvm'));
 if ischar(input), input = uint8(input); end
 
diff --git a/base64encode.m b/base64encode.m
index 3fa27f8..205bc2d 100644
--- a/base64encode.m
+++ b/base64encode.m
@@ -14,10 +14,12 @@
 % License : BSD, see LICENSE_*.txt
 %
 
-error(nargchk(1, 1, nargin));
+if(nargin==0)
+    error('you must provide at least 1 input');
+end
 error(javachk('jvm'));
 if ischar(input), input = uint8(input); end
 
 output = char(org.apache.commons.codec.binary.Base64.encodeBase64Chunked(input))';
-
+output = regexprep(output,'\r','');
 end
diff --git a/gzipdecode.m b/gzipdecode.m
index 0baf388..cb02ee2 100644
--- a/gzipdecode.m
+++ b/gzipdecode.m
@@ -14,7 +14,9 @@
 % License : BSD, see LICENSE_*.txt
 %
 
-error(nargchk(1, 1, nargin));
+if(nargin==0)
+    error('you must provide at least 1 input');
+end
 error(javachk('jvm'));
 if ischar(input)
   warning('gzipdecode:inputTypeMismatch', ...
diff --git a/gzipencode.m b/gzipencode.m
index 415f04a..39fed96 100644
--- a/gzipencode.m
+++ b/gzipencode.m
@@ -15,7 +15,9 @@
 % License : BSD, see LICENSE_*.txt
 %
 
-error(nargchk(1, 1, nargin));
+if(nargin==0)
+    error('you must provide at least 1 input');
+end
 error(javachk('jvm'));
 if ischar(input), input = uint8(input); end
 if ~isa(input, 'int8') && ~isa(input, 'uint8')
diff --git a/zlibdecode.m b/zlibdecode.m
index 47202af..c85dbff 100644
--- a/zlibdecode.m
+++ b/zlibdecode.m
@@ -14,7 +14,9 @@
 % License : BSD, see LICENSE_*.txt
 %
 
-error(nargchk(1, 1, nargin));
+if(nargin==0)
+    error('you must provide at least 1 input');
+end
 error(javachk('jvm'));
 if ischar(input)
   warning('zlibdecode:inputTypeMismatch', ...
diff --git a/zlibencode.m b/zlibencode.m
index 0999279..adaaf23 100644
--- a/zlibencode.m
+++ b/zlibencode.m
@@ -16,7 +16,9 @@
 %
 
 
-error(nargchk(1, 1, nargin));
+if(nargin==0)
+    error('you must provide at least 1 input');
+end
 error(javachk('jvm'));
 if ischar(input), input = uint8(input); end
 if ~isa(input, 'int8') && ~isa(input, 'uint8')