Enabled DVD-R/DL Sequential via burn_allow_untested_profiles()

libburn/trunk/doc/cookbook.txt

@@ -689,6 +689,7 @@ Media type can be recognized by Current Profile from 46h GET CONFIGURATION.
 DVD-R                          0011h
 DVD-RW Restricted Overwrite    0013h
 DVD-RW Sequential Recording    0014h
+(DVD-R/DL Sequential Recording 0015h untested, might be single-session only)
 
 There are two approaches for writing to sequential DVD-R[W]: DAO and
 Incremental. Not all media and drives offer Incremental which allows 
@@ -701,6 +702,7 @@ track and it demands an exactly predicted track size.
 - DAO writing
 - Obtaining DVD-R[W] multi-session info for extending ISO-9660 filesystems
 - Obtaining a Table Of Content from DVD-R[W]
+- Hearsay about DVD-R/DL (Dual Layer)
 
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 About overwriteable, blank, appendable and finalized DVD-R[W] media :
@@ -962,5 +964,24 @@ model. Their start address is computed from the start and size of the last
 track of the session.
 
 
+-------------------------------------------------------------------------------
+Hearsay about DVD-R/DL (Dual Layer) :
+
+DVD-R/DL can assume profile 0015h DVD-R Dual Layer Sequential which is supposed
+to behave like DVD-R or 0016h DVD-R Dual Layer Jump which has no counterpart
+with DVD-R.
+
+A half-sentence in mmc5r03c.pdf 6.3.3.3.3 might indicate that closing a session
+by 5Bh CLOSE TRACK SESSION Close Function 010b overrides the multi-session bits
+in mode page 5.
+growisofs applies this function in case of not DAO, though. A comment in
+growisofs_mmc.cpp states: "// DVD-R DL Seq has no notion of multi-session".
+I am not reading this from the specs - but not explicitely the contrary either.
+
+For now libburn will close the session but there is a macro prepared in
+libburn/write.c Libburn_dvd_r_dl_multi_no_close_sessioN which will suppress
+close session if multi-session is demanded.
+
+
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