diff --git a/diskimg/DOS33.cpp b/diskimg/DOS33.cpp
index af71f9c..74acedf 100644
--- a/diskimg/DOS33.cpp
+++ b/diskimg/DOS33.cpp
@@ -835,6 +835,9 @@ DIError DiskFSDOS33::ProcessCatalogSector(int catTrack, int catSect,
                 break;
             }
 
+            memcpy(pFile->fRawName, &pEntry[0x03], A2FileDOS::kMaxFileName);
+            pFile->fRawName[A2FileDOS::kMaxFileName] = '\0';
+
             memcpy(pFile->fFileName, &pEntry[0x03], A2FileDOS::kMaxFileName);
             pFile->fFileName[A2FileDOS::kMaxFileName] = '\0';
             pFile->FixFilename();
diff --git a/diskimg/DiskImg.h b/diskimg/DiskImg.h
index 78d81b9..a994810 100644
--- a/diskimg/DiskImg.h
+++ b/diskimg/DiskImg.h
@@ -1474,6 +1474,9 @@ public:
      * means that embedded nulls in HFS filenames (which are discouraged but
      * allowed) will be lost.
      *
+     * The original unmodified filename is availale through GetRawFileName,
+     * though HFS still suffers from embedded nulls.
+     * 
      * We do guarantee that the contents of subdirectories are grouped
      * together.  This makes it much easier to construct a hierarchy out of
      * the linear list.  This becomes important when dynamically adding
@@ -1481,6 +1484,9 @@ public:
      */
     virtual const char* GetFileName(void) const = 0;    // name of this file
     virtual const char* GetPathName(void) const = 0;    // full path
+    virtual const char* GetRawFileName(void) const {    // get unmodified file name
+        return GetFileName();
+    }
     virtual char GetFssep(void) const = 0;              // '\0' if none
     virtual uint32_t GetFileType(void) const = 0;
     virtual uint32_t GetAuxType(void) const = 0;
diff --git a/diskimg/DiskImgDetail.h b/diskimg/DiskImgDetail.h
index 8b31b7e..e3e0b82 100644
--- a/diskimg/DiskImgDetail.h
+++ b/diskimg/DiskImgDetail.h
@@ -1444,6 +1444,7 @@ public:
      */
     virtual const char* GetFileName(void) const override { return fFileName; }
     virtual const char* GetPathName(void) const override { return fFileName; }
+    virtual const char* GetRawFileName(void) const override { return fRawFileName; }
     virtual char GetFssep(void) const override { return '\0'; }
     virtual uint32_t GetFileType(void) const override;
     virtual uint32_t GetAuxType(void) const override { return fAuxType; }
@@ -1482,6 +1483,7 @@ private:
     short       fTSListSector;
     uint16_t    fLengthInSectors;
     bool        fLocked;
+    char        fRawFileName[kMaxFileName + 1]; // "raw" version
     char        fFileName[kMaxFileName+1];  // "fixed" version
     FileType    fFileType;
 
@@ -2493,6 +2495,7 @@ public:
      */
     virtual const char* GetFileName(void) const override { return fFileName; }
     virtual const char* GetPathName(void) const override { return fFileName; }
+    virtual const char* GetRawFileName(void) const override { return fRawName; }
     virtual char GetFssep(void) const override { return '\0'; }
     virtual uint32_t GetFileType(void) const override;
     virtual uint32_t GetAuxType(void) const override { return fLoadAddr; }
@@ -2518,6 +2521,7 @@ public:
 
     /* fields pulled out of directory block */
     char            fFileName[kMaxFileName+1];
+    char            fRawName[kMaxFileName + 1];
     FileType        fFileType;
     uint16_t        fNumSectors;
     uint16_t        fLoadAddr;
diff --git a/diskimg/RDOS.cpp b/diskimg/RDOS.cpp
index e6ac8c7..3fa6f3f 100644
--- a/diskimg/RDOS.cpp
+++ b/diskimg/RDOS.cpp
@@ -344,6 +344,9 @@ DIError DiskFSRDOS::ReadCatalog(void)
 
         pFile = new A2FileRDOS(this);
 
+        memcpy(pFile->fRawName, dirPtr, A2FileRDOS::kMaxFileName);
+        pFile->fRawName[A2FileRDOS::kMaxFileName] = '\0';
+
         memcpy(pFile->fFileName, dirPtr, A2FileRDOS::kMaxFileName);
         pFile->fFileName[A2FileRDOS::kMaxFileName] = '\0';
         pFile->FixFilename();