diff --git a/app/ArchiveInfoDialog.cpp b/app/ArchiveInfoDialog.cpp
index f608162..5e7b60d 100644
--- a/app/ArchiveInfoDialog.cpp
+++ b/app/ArchiveInfoDialog.cpp
@@ -183,9 +183,8 @@ void DiskArchiveInfoDialog::AddSubVolumes(const DiskFS* pDiskFS,
     /*
      * Add the current DiskFS.
      */
-    CStringA volumeIdA(pDiskFS->GetVolumeID());
     CString tmpStr(prefix);
-    tmpStr += Charset::ConvertMORToUNI(volumeIdA);
+    tmpStr += Charset::ConvertMORToUNI(pDiskFS->GetVolumeID());
     pCombo->AddString(tmpStr);
     pCombo->SetItemData(*pIdx, (unsigned long) pDiskFS);
     (*pIdx)++;
diff --git a/app/DiskArchive.cpp b/app/DiskArchive.cpp
index 8acce85..4c1906d 100644
--- a/app/DiskArchive.cpp
+++ b/app/DiskArchive.cpp
@@ -892,8 +892,7 @@ CString DiskArchive::GetDescription() const
     CString str = L"Disk Image";
 
     if (fpPrimaryDiskFS != NULL && fpPrimaryDiskFS->GetVolumeID() != NULL) {
-        CStringA volumeIdA(fpPrimaryDiskFS->GetVolumeID());
-        CString volumeId(Charset::ConvertMORToUNI(volumeIdA));
+        CString volumeId(Charset::ConvertMORToUNI(fpPrimaryDiskFS->GetVolumeID()));
         str.Format(L"Disk Image - %ls", (LPCWSTR) volumeId);
     }
     return str;
@@ -1090,12 +1089,11 @@ int DiskArchive::LoadDiskFSContents(DiskFS* pDiskFS, const WCHAR* volName)
      */
     pSubVol = pDiskFS->GetNextSubVolume(NULL);
     while (pSubVol != NULL) {
-        CStringA subVolNameMOR;
         CString concatSubVolName;
         int ret;
 
-        subVolNameMOR = pSubVol->GetDiskFS()->GetVolumeName();
-        if (subVolNameMOR.IsEmpty()) {
+        const char* subVolNameMOR = pSubVol->GetDiskFS()->GetVolumeName();
+        if (subVolNameMOR == NULL) {
             subVolNameMOR = "+++";      // call it *something*
         }
         CString subVolName(Charset::ConvertMORToUNI(subVolNameMOR));
diff --git a/app/DiskEditDialog.cpp b/app/DiskEditDialog.cpp
index feaa6d5..126c23f 100644
--- a/app/DiskEditDialog.cpp
+++ b/app/DiskEditDialog.cpp
@@ -132,8 +132,7 @@ BOOL DiskEditDialog::OnInitDialog(void)
     title += fFileName;
     if (fpDiskFS->GetVolumeID() != NULL) {
         title += " (";
-        CStringA volumeIdA(fpDiskFS->GetVolumeID());
-        title += Charset::ConvertMORToUNI(volumeIdA);
+        title += Charset::ConvertMORToUNI(fpDiskFS->GetVolumeID());
         title += ")";
     }
     SetWindowText(title);
@@ -280,8 +279,7 @@ void DiskEditDialog::OnSubVolume(void)
             pEditDialog = &blockEdit;
         else
             pEditDialog = &sectorEdit;
-        CStringA volumeIdA(fpDiskFS->GetVolumeID());
-        CString volumeId(Charset::ConvertMORToUNI(volumeIdA));
+        CString volumeId(Charset::ConvertMORToUNI(fpDiskFS->GetVolumeID()));
         pEditDialog->Setup(pSubVol->GetDiskFS(), volumeId);
         pEditDialog->SetPositionShift(8);
         (void) pEditDialog->DoModal();
diff --git a/app/DiskFSTree.cpp b/app/DiskFSTree.cpp
index 395e3d3..d0c6184 100644
--- a/app/DiskFSTree.cpp
+++ b/app/DiskFSTree.cpp
@@ -43,8 +43,7 @@ bool DiskFSTree::AddDiskFS(CTreeCtrl* pTree, HTREEITEM parent,
     pTarget->pDiskFS = pDiskFS;
     pTarget->pFile = NULL;   // could also use volume dir for ProDOS
     tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_PARAM;
-    CStringA volumeIdA(pDiskFS->GetVolumeID());
-    CString volumeId(Charset::ConvertMORToUNI(volumeIdA));
+    CString volumeId(Charset::ConvertMORToUNI(pDiskFS->GetVolumeID()));
     int index = fStringHolder.Add(volumeId);
     tvi.pszText = (LPWSTR)(LPCWSTR) fStringHolder.GetAt(index);
     tvi.cchTextMax = 0;     // not needed for insertitem
diff --git a/app/MyApp.h b/app/MyApp.h
index f2baa5c..30f66d4 100644
--- a/app/MyApp.h
+++ b/app/MyApp.h
@@ -15,7 +15,7 @@
 #define kAppMajorVersion    4
 #define kAppMinorVersion    0
 #define kAppBugVersion      0
-#define kAppDevString       L"b3"
+#define kAppDevString       L"-b3"
 
 /*
  * Windows application object.
diff --git a/app/SubVolumeDialog.cpp b/app/SubVolumeDialog.cpp
index 9a222e7..dfb0b46 100644
--- a/app/SubVolumeDialog.cpp
+++ b/app/SubVolumeDialog.cpp
@@ -34,8 +34,7 @@ BOOL SubVolumeDialog::OnInitDialog(void)
     DiskFS::SubVolume* pSubVol = fpDiskFS->GetNextSubVolume(NULL);
     ASSERT(pSubVol != NULL);     // shouldn't be here otherwise
     while (pSubVol != NULL) {
-        CStringA volumeIdA(pSubVol->GetDiskFS()->GetVolumeID());
-        CString volumeId(Charset::ConvertMORToUNI(volumeIdA));
+        CString volumeId(Charset::ConvertMORToUNI(pSubVol->GetDiskFS()->GetVolumeID()));
         pListBox->AddString(volumeId); // makes a copy of the string
 
         pSubVol = fpDiskFS->GetNextSubVolume(pSubVol);
diff --git a/app/VolumeCopyDialog.cpp b/app/VolumeCopyDialog.cpp
index a852272..a4f2ffb 100644
--- a/app/VolumeCopyDialog.cpp
+++ b/app/VolumeCopyDialog.cpp
@@ -334,8 +334,7 @@ void VolumeCopyDialog::AddToList(CListCtrl* pListView, DiskImg* pDiskImg,
 
     long numBlocks = pDiskImg->GetNumBlocks();
 
-    CStringA volNameA = pDiskFS->GetVolumeName();
-    CString volName(Charset::ConvertMORToUNI(volNameA));
+    CString volName(Charset::ConvertMORToUNI(pDiskFS->GetVolumeName()));
     CString format = DiskImg::ToString(pDiskImg->GetFSFormat());
     blocksStr.Format(L"%ld", pDiskImg->GetNumBlocks());
     if (numBlocks > 1024*1024*2)
@@ -400,8 +399,7 @@ void VolumeCopyDialog::OnCopyToFile(void)
     assert(pSrcImg != NULL);
     assert(pSrcFS != NULL);
 
-    CStringA srcNameA = pSrcFS->GetVolumeName();
-    CString srcName(Charset::ConvertMORToUNI(srcNameA));
+    CString srcName(Charset::ConvertMORToUNI(pSrcFS->GetVolumeName()));
 
     /* force the format to be generic ProDOS-ordered blocks */
     originalFormat = pSrcImg->GetFSFormat();
@@ -586,8 +584,7 @@ void VolumeCopyDialog::OnCopyFromFile(void)
     if (!result)
         return;
 
-    CStringA targetNameA = pDstFS->GetVolumeName();
-    CString targetName(Charset::ConvertMORToUNI(targetNameA));
+    CString targetName(Charset::ConvertMORToUNI(pDstFS->GetVolumeName()));
 
 
     /*
diff --git a/reformat/Charset.h b/reformat/Charset.h
index 94808c3..d130e31 100644
--- a/reformat/Charset.h
+++ b/reformat/Charset.h
@@ -28,14 +28,14 @@ public:
     }
 
     // Simple Mac OS Roman to Unicode string conversion.
-    static CString ConvertMORToUNI(const CStringA& strMOR)
+    static CString ConvertMORToUNI(const char* strMOR)
     {
         // We know that all MOR characters are represented in Unicode with a
         // single BMP code point, so we know that strlen(MOR) == wcslen(UNI).
-        const int len = strMOR.GetLength();
+        const size_t len = strlen(strMOR);
         CString strUNI;
         WCHAR* uniBuf = strUNI.GetBuffer(len);
-        for (int i = 0; i < len; i++) {
+        for (size_t i = 0; i < len; i++) {
             uniBuf[i] = Charset::ConvertMacRomanToUTF16(strMOR[i]);
         }
         strUNI.ReleaseBuffer(len);