diff --git a/src/dvdcopy.cc b/src/dvdcopy.cc
index 76376b4..8a5159a 100644
--- a/src/dvdcopy.cc
+++ b/src/dvdcopy.cc
@@ -111,18 +111,29 @@ int DVDCopy::copyFile(const DVDFileData * dat, int firstBlock,
   }
   DVDOutFile outfile(targetDirectory.c_str(), dat->title, dat->domain);
 
-  auto success = [&outfile](int offset, int nb, 
-                            unsigned char * buffer,
-                            const DVDFileData * dat) {
-    outfile.writeSectors(reinterpret_cast<char*>(buffer), nb);
-  };
 
   int skipped = 0;
-  auto failure = [&outfile, &skipped, this](int blk, int nb, 
-                                            const DVDFileData * dat) {
-    outfile.skipSectors(nb);
-    registerBadSectors(dat, blk, nb);
-    skipped += nb;
+  struct encaps {
+    int & sk;
+    DVDOutFile & of;
+    DVDCopy * dd;
+  } base = { skipped, outfile, this};
+
+  auto success = [](int offset, int nb, 
+                    unsigned char * buffer,
+                    const DVDFileData * dat,
+                    void * en) {
+    encaps * b = (encaps*) en;
+    b->of.writeSectors(reinterpret_cast<char*>(buffer), nb);
+  };
+
+  auto failure = [](int blk, int nb, 
+                    const DVDFileData * dat,
+                    void * en) {
+    encaps * b = (encaps*) en;
+    b->of.skipSectors(nb);
+    b->dd->registerBadSectors(dat, blk, nb);
+    b->sk += nb;
   };
 
   int size = file->fileSize();
@@ -137,7 +148,8 @@ int DVDCopy::copyFile(const DVDFileData * dat, int firstBlock,
   if(blockNumber < 0)
     blockNumber = size - current_size;
 
-  file->walkFile(current_size, blockNumber, readNumber, success, failure);
+  file->walkFile(current_size, blockNumber, readNumber, 
+                 success, failure, &base);
 
   outfile.closeFile(); 
   if(skipped) {
diff --git a/src/dvdfile.cc b/src/dvdfile.cc
index 8fad229..4a7ef3d 100644
--- a/src/dvdfile.cc
+++ b/src/dvdfile.cc
@@ -125,9 +125,12 @@ DVDFile * DVDFile::openFile(dvd_reader_t * reader, const DVDFileData * dat)
 void DVDFile::walkFile(int start, int blocks, int steps, 
                        void (*successfulRead)(int offset, int nb, 
                                               unsigned char * buffer,
-                                              const DVDFileData * dat),
+                                              const DVDFileData * dat, 
+                                              void * d),
                        void (*failedRead)(int offset, int nb, 
-                                          const DVDFileData * dat))
+                                          const DVDFileData * dat,
+                                          void * d),
+                       void * d)
 {
   /* Data structures necessary for progress report */
   struct timeval init;
@@ -168,11 +171,11 @@ void DVDFile::walkFile(int start, int blocks, int steps,
       /* There was an error reading the file. */
       printf("\nError while reading block %d of file %s, skipping\n",
              blk, fileName.c_str());
-      failedRead(blk, nb, dat);
+      failedRead(blk, nb, dat, d);
       read = nb;
     }
     else 
-      successfulRead(blk, read, readBuffer.get(), dat);
+      successfulRead(blk, read, readBuffer.get(), dat, d);
 
     remaining -= read;
     blk += read;
diff --git a/src/dvdfile.hh b/src/dvdfile.hh
index 75c4e40..5ad53bb 100644
--- a/src/dvdfile.hh
+++ b/src/dvdfile.hh
@@ -62,9 +62,12 @@ public:
   void walkFile(int start, int blocks, int steps, 
                 void (*successfulRead)(int offset, int nb, 
                                        unsigned char * buffer,
-                                       const DVDFileData * dat),
+                                       const DVDFileData * dat,
+                                       void * ptr),
                 void (*failedRead)(int offset, int nb, 
-                                   const DVDFileData * dat));
+                                   const DVDFileData * dat,
+                                   void * ptr),
+                void * ptr);
 };