diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 668c2d62..ac63ead7 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2009.11.17.142447"
+#define Xorriso_timestamP "2009.11.28.123903"
diff --git a/xorriso/xorrisoburn.c b/xorriso/xorrisoburn.c
index 6fbeca25..c78a0228 100644
--- a/xorriso/xorrisoburn.c
+++ b/xorriso/xorrisoburn.c
@@ -8946,7 +8946,7 @@ int Xorriso_burn_track(struct XorrisO *xorriso, off_t write_start_address,
  struct burn_track *track;
  struct stat stbuf; 
  off_t fixed_size= 0;
- struct burn_source *data_src, *fifo_src;
+ struct burn_source *data_src= NULL, *fifo_src= NULL;
  enum burn_disc_status disc_state;
  char reasons[BURN_REASONS_LEN], sfe[5*SfileadrL], profile_name[80];
  char head_buffer[64*1024];
@@ -8979,7 +8979,10 @@ int Xorriso_burn_track(struct XorrisO *xorriso, off_t write_start_address,
  if(track_source[0] == '-' && track_source[1] == 0) {
    fd= 0;
  } else {
-   fd= open(track_source, O_RDONLY);
+   if(xorriso->fs >= 64)
+     fd= burn_os_open_track_src(track_source, O_RDONLY, 0);
+   else
+     fd= open(track_source, O_RDONLY);
    if(fd>=0)
      if(fstat(fd,&stbuf)!=-1)
        if((stbuf.st_mode&S_IFMT)==S_IFREG)
@@ -8988,7 +8991,6 @@ int Xorriso_burn_track(struct XorrisO *xorriso, off_t write_start_address,
  if(fixed_size==0)
    unpredicted_size= 1;
 
- data_src= NULL;
  if(fd>=0)
    data_src= burn_fd_source_new(fd, -1, fixed_size);
  if(data_src==NULL) {
@@ -8997,18 +8999,21 @@ int Xorriso_burn_track(struct XorrisO *xorriso, off_t write_start_address,
    Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, errno, "FAILURE", 0);
    ret= 0; goto ex;
  }
- if(do_isosize && xorriso->fs < 64)
+ if((do_isosize || xorriso->fs != 0) && xorriso->fs < 64)
    xorriso->fs= 64;
- fifo_src= burn_fifo_source_new(data_src, 2048 + 8 * !!(flag & 4),
-                                xorriso->fs, 0);
- if(fifo_src == NULL) {
-   sprintf(xorriso->info_text, "Could not create fifo object of %.f MB",
-           ((double) xorriso->fs) / 1024.0 / 1024.0);
-   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
-   ret= 0; goto ex;
- }
+ if(xorriso->fs > 0) {
+   fifo_src= burn_fifo_source_new(data_src, 2048 + 8 * !!(flag & 4),
+                                  xorriso->fs, 1);
+   if(fifo_src == NULL) {
+     sprintf(xorriso->info_text, "Could not create fifo object of %.f MB",
+             ((double) xorriso->fs) / 1024.0 / 1024.0);
+     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
+     ret= 0; goto ex;
+   }
+ } 
  xorriso->pacifier_fifo= fifo_src;
- if(burn_track_set_source(track, fifo_src)!=BURN_SOURCE_OK) {
+ if(burn_track_set_source(track, fifo_src == NULL ? data_src : fifo_src)
+    != BURN_SOURCE_OK) {
    sprintf(xorriso->info_text,
            "Cannot attach source object to track object");
    Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);