diff --git a/sammy/src/io/Hdf5IO.cpp b/sammy/src/io/Hdf5IO.cpp
index a561f5007633dda6510135d9395cafccebf07185..b81cc466aee0927a331f377c9230ffe978e4bb1e 100644
--- a/sammy/src/io/Hdf5IO.cpp
+++ b/sammy/src/io/Hdf5IO.cpp
@@ -59,10 +59,6 @@ namespace sammy {
         // --- header -----
         fillHDF5header(odfhead);
 
-        for( auto bit : h5head ){
-            std::cout << bit.key << " = " << bit.value << std::endl;
-        }
-
         hsize_t mdim[1];
         mdim[0] = h5head.size();
         int mrank = sizeof(mdim) / sizeof(hsize_t);
diff --git a/sammy/src/io/Hdf5IO.h b/sammy/src/io/Hdf5IO.h
index 16393d2c83723530b8cf2c78ae3d4bf7aed6feb6..dd073a0f4a1b8785c94721d30ff260a961390bd0 100644
--- a/sammy/src/io/Hdf5IO.h
+++ b/sammy/src/io/Hdf5IO.h
@@ -11,6 +11,10 @@
 
 namespace sammy{
 
+    /*****************************************************************
+     * This struct defines the keypair values that will be used to 
+     * compose the header for HDF5 metadata
+     ****************************************************************/
     struct headKeypair{
         const char * key; 
         int value;
diff --git a/sammy/src/io/OdfIO.cpp b/sammy/src/io/OdfIO.cpp
index e25b939fe8990337bc72bda40ce2c0d0a3607147..11a2241c5094ce20223b3aa4642d2d047e38b7b0 100644
--- a/sammy/src/io/OdfIO.cpp
+++ b/sammy/src/io/OdfIO.cpp
@@ -113,7 +113,7 @@ namespace sammy{
         // comments based on OPRODF manual: Jack Craven, report no. ORNL/CSD/TM-45, 1978
         //  ** keep in mind that changes may have happened between that report and
         //  ** the writing of the files!!! For example it seems that 36 bit ints are no 
-        //  ** longer used. 
+        //  ** longer used (32 bit now). 
         in.read( (char*)&head["mode"], intsize ); // 0,1,3 for 18-bit ints, 36-bit ints, floating-point vals
         in.read( (char*)&head["source"], intsize ); // 0,1,2 for SEL, CSISRS, or ENDF/B data
         in.read( (char*)&head["irun"], intsize ); // run number
diff --git a/sammy/src/io/convertodf.cpp b/sammy/src/io/convertodf.cpp
index 305f0565efc5cc2c007b74d5f57e5f874015894a..ea652389e43ae387960079f7713bfc941af5dfa1 100644
--- a/sammy/src/io/convertodf.cpp
+++ b/sammy/src/io/convertodf.cpp
@@ -50,7 +50,5 @@ int main(int argc, char const *argv[])
     sammy::Hdf5IO h5writer;
     h5writer.writeODFtoHDF5(odf.getHeader(),data,hdf5Filename);
 
-
-
     return 0;
 }
\ No newline at end of file