Try to read header chain from alleged -ROM media (e.g. DVD+RW in -ROM drive)

libisoburn/isoburn.h

@@ -351,6 +351,19 @@ struct isoburn_imgen_opts {
 */
 #define Libisoburn_nwa_alignemenT 32
 
+
+/* Alignment for outer session scanning with -ROM drives.
+   (E.g. my DVD-ROM drive shows any DVD type as 0x10 "DVD-ROM" with
+    more or less false capacity and TOC.)
+*/
+#define Libisoburn_toc_scan_alignemenT 16
+
+/* Maximum gap to be bridged during a outer TOC scan. Gaps appear between the
+   end of a session and the start of the next session.
+*/
+#define Libisoburn_toc_scan_max_gaP 8192
+
+
 /* Size of target_iso_head which is to be written during
    isoburn_activate_session()
 */