Preparations for supporting DVD+R[/DL]

cdrskin/cdrskin.c

@@ -4524,9 +4524,11 @@ int Cdrskin_activate_write_mode(struct CdrskiN *skin, enum burn_disc_status s,
    } else if((profile_number==0x1a || profile_number==0x13 ||
               profile_number==0x12 ||
               profile_number==0x11 || profile_number==0x14 ||
-              profile_number==0x15)
+              profile_number==0x15 ||
+              profile_number==0x1b || profile_number==0x2b)
              && might_do_tao) {
-     /* DVD+RW, DVD-RW Restr. Overwrite, DVD-RAM, DVD-R[W][/DL] Sequential */
+     /* DVD+RW, DVD-RW Restricted Overwrite, DVD-RAM,
+        DVD-R[W][/DL] Sequential Recording, DVD+R[/DL] */
      strcpy(skin->preskin->write_mode_name,"TAO");
    } else {
      strcpy(skin->preskin->write_mode_name,"SAO");

cdrskin/cdrskin_timestamp.h

@@ -1 +1 @@
-#define Cdrskin_timestamP "2007.02.25.112733"
+#define Cdrskin_timestamP "2007.03.01.120945"

doc/cookbook.txt

@@ -5,7 +5,7 @@ Content:
 - SAO CD Cookbook (CD-R, CD-RW, pure audio or pure data only)
 - Overwriteable DVD Cookbook (DVD-RAM, DVD+RW, DVD-RW)
 - Sequential DVD-R[W] Cookbook
-
+- >>> DVD+R Cookbook (emerging, totally untested yet)
 
 -------------------------------------------------------------------------------
                          TAO Multi-Session CD Cookbook
@@ -973,7 +973,7 @@ 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.
+in mode page 05h.
 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.
@@ -985,3 +985,107 @@ close session if multi-session is demanded.
 
 -------------------------------------------------------------------------------
 
+-------------------------------------------------------------------------------
+
+                     INCOMPLETE, YET TOTALLY UNTESTED
+
+                              DVD+R Cookbook
+-------------------------------------------------------------------------------
+Inspired by reading mmc5r03c.pdf from http://www.t10.org/ftp/t10/drafts/mmc5/
+backed by Andy Polyakov's http://fy.chalmers.se/~appro/linux/DVD+RW/tools ,
+
+For libburnia.pykix.org by Thomas Schmitt <scdbackup@gmx.net>
+
+-------------------------------------------------------------------------------
+
+Media type can be recognized by Current Profile from 46h GET CONFIGURATION.
+(mmc5r03c.pdf 6.6.2.1)
+DVD+R                          001bh
+DVD+R/DL                       002bh
+
+- About empty, appendable and finalized DVD+R
+- Writing a Pseudo Session to DVD+R
+- >>> Obtaining multi-session info for extending ISO-9660 filesystems
+- >>> Obtaining a Table Of Content from CD
+- >>> Hearsay about DVD+R/DL (Dual Layer) :
+
+-------------------------------------------------------------------------------
+About blank, appendable and finalized DVD+R :
+
+In the beginning a DVD+R holds an empty session and the Incomplete Fragment.
+From these one may spawn reserved fragments or one may write directly to
+the incomplete fragment. As soon as this is done the empty session becomes the
+open session which finally needs to get closed. By closing fragments and
+session a new empty session with empty Incomplete Fragment gets spawned.
+So the disc stays appendable.
+
+A DVD+R may hold 153 closed sessions with a single track each.
+The open session may hold up to 15 open fragments. But on closure of the
+session those fragments together form a single logical track.  So one will
+usually only use a single fragment for sequential writing. 
+(mmc5r03c.pdf 4.3.6.2)
+
+The disc may get finalized by another close command so that no more data can
+be written.
+(mmc5r03c.pdf 6.3.3.4.4) 
+
+
+-------------------------------------------------------------------------------
+Writing a Pseudo Session to DVD+R :
+
+Session writing has to be pseudo because only one logical track per session
+can be distinguished. So actually there have to be written multiple sessions
+to mark multiple tracks. The pseudo session cannot get marked on disc and thus
+the tracks of a pseudo session cannot be grouped accordingly in a TOC.
+
+Speed can be influenced by B6h SET STREAMING , speed capabilities can be
+inquired by ACh GET PERFORMANCE. It is advised to set only speeds and sizes
+which are returned by ACh.
+(mmc5r03c.pdf 6.39 SET STREAMING, 6.8 GET PERFORMANCE)	
+
+No mode page 05h is to be sent.
+growisofs sends a page but the specs clearly state that one shall not do.
+(mmc5r03c.pdf 7.5.3)
+
+It is optional wether a track size is reserved in advance or not. Eventually
+this is done by 53h RESERVE TRACK, RMZ=ARSV=0. Reservation size should better
+already be aligned to 32 KiB.
+(mmc5r03c.pdf 6.31)
+The specs promise to pad up the track if not enough data get written.
+(mmc5r03c.pdf 6.3.3.4.2)
+
+Next Writeable Address is fetched from the reply of 52h READ TRACK INFORMATION
+with track number FFh.
+(mmc5r03c.pdf 6.27)
+Since the fixely set write type is 16-block packet, full 32 kB buffers have
+to be transmitted via 2Ah WRITE.
+(mmc5r03c.pdf 4.3.6.2.2)
+
+When writing is done, it is mandatory to force the drive's buffer to media by
+35h SYNCHRONIZE CACHE.
+(mmc5r03c.pdf 6.41)
+
+The written fragment (i.e. track-to-be) has to be closed by 5Bh CLOSE TRACK
+SESSION Close Function 001b.
+(mmc5r03c.pdf 6.3.3.4.2)
+libburn obtains the necessary logical track number from Last Track Number in
+Last Session from the reply of 51h READ DISC INFORMATION requesting
+Data Type 000b.
+(mmc5r03c.pdf 6.22) 
+After each track 5Bh CLOSE TRACK SESSION Close Function 010b with Logical Track
+Number 0 closes the DVD+R session but keeps the media appendable.
+(mmc5r03c.pdf 6.3.3.4.3)
+
+
+Eventually 5Bh CLOSE TRACK SESSION Close Function 101b is used to finalize
+the media with minimal radius. After that the disc is not appendable any more !
+(mmc5r03c.pdf 6.3.3.4.4) 
+
+
+-------------------------------------------------------------------------------
+Hearsay about DVD+R/DL (Dual Layer) :
+
+>>>
+
+-------------------------------------------------------------------------------
+

libburn/drive.c

@@ -1696,8 +1696,7 @@ int burn_disc_get_multi_caps(struct burn_drive *d, enum burn_write_types wt,
 		o->advised_write_mode = BURN_WRITE_TAO;
 	} else if (d->current_profile == 0x1b || d->current_profile == 0x2b) {
 		/* DVD+R , DVD+R/DL */
-		o->multi_session = 1;
-		o->multi_track = 1;
+		o->multi_session = o->multi_track = 1;
 		o->might_do_tao = 2;
 		o->might_do_sao = 1;
 		o->advised_write_mode = BURN_WRITE_TAO;

libburn/mmc.c

@@ -89,8 +89,6 @@ extern struct libdax_msgs *libdax_messenger;
                size prediction mandatory.
    ts A70208 : Finally made tests with DVD-R. Worked exactly as new DVD-RW.
 
-Todo:
-   Determine first free lba for appending data on overwriteables. 
 */
 
 
@@ -242,7 +240,6 @@ int mmc_reserve_track(struct burn_drive *d, off_t size)
 int mmc_read_track_info(struct burn_drive *d, int trackno, struct buffer *buf)
 {
 	struct command c;
-	int i;
 
 	mmc_function_spy("mmc_read_track_info");
 	c.retry = 1;
@@ -263,8 +260,7 @@ int mmc_read_track_info(struct burn_drive *d, int trackno, struct buffer *buf)
 		else /* mmc5r03c.pdf: valid only for CD, DVD+R, DVD+R DL */
 			trackno = 0xFF;
 	}
-	for (i = 0; i < 4; i++)
-		c.opcode[2 + i] = (trackno >> (24 - 8 * i)) & 0xff;
+	mmc_int_to_four_char(c.opcode + 2, trackno);
 	c.page = buf;
 	memset(buf->data, 0, BUFFER_SIZE);
 	c.dir = FROM_DRIVE;
@@ -285,26 +281,11 @@ int mmc_get_nwa(struct burn_drive *d, int trackno, int *lba, int *nwa)
 	unsigned char *data;
 
 	mmc_function_spy("mmc_get_nwa");
-	if(trackno<=0) {
-		if (d->current_profile == 0x1a || d->current_profile == 0x13 ||
-		    d->current_profile == 0x12 )
-			 /* DVD+RW , DVD-RW restricted overwrite , DVD-RAM */
-			trackno = 1;
-		else if (d->current_profile == 0x10 ||
-			 d->current_profile == 0x11 ||
-			 d->current_profile == 0x14 ||
-			 d->current_profile == 0x15)
-			/* DVD-ROM, DVD-R[W] Sequential */
-			trackno = d->last_track_no;
-		else /* mmc5r03c.pdf: valid only for CD, DVD+R, DVD+R DL */
-			trackno = 0xFF;
-	}
 
 	ret = mmc_read_track_info(d, trackno, &buf);
 	if (ret <= 0)
 		return ret;
 	data = buf.data;
-
 	*lba = mmc_four_char_to_int(data + 8);
 	*nwa = mmc_four_char_to_int(data + 12);
 	num = mmc_four_char_to_int(data + 16);
@@ -375,6 +356,11 @@ void mmc_close_session(struct burn_write_opts *o)
 	mmc_close(d, 1, 0);
 }
 
+/* ts A70227 : extended meaning of session to address all possible values
+               of 5Bh CLOSE TRACK SESSION to address any Close Function.
+               @param session contains the two high bits of Close Function
+               @param track if not 0: sets the lowest bit of Close Function
+*/
 void mmc_close(struct burn_drive *d, int session, int track)
 {
 	struct command c;
@@ -385,8 +371,8 @@ void mmc_close(struct burn_drive *d, int session, int track)
 	c.oplen = sizeof(MMC_CLOSE);
 	memcpy(c.opcode, MMC_CLOSE, sizeof(MMC_CLOSE));
 
-	/* ts A61030 : shifted !!session rather than or-ing plain session */
-	c.opcode[2] = ((!!session)<<1) | !!track;
+	/* (ts A61030 : shifted !!session rather than or-ing plain session ) */
+	c.opcode[2] = ((session & 3) << 1) | !!track;
 	c.opcode[4] = track >> 8;
 	c.opcode[5] = track & 0xFF;
 	c.page = NULL;
@@ -431,14 +417,8 @@ void mmc_write_12(struct burn_drive *d, int start, struct buffer *buf)
 	memcpy(c.opcode, MMC_WRITE_12, sizeof(MMC_WRITE_12));
 	c.retry = 1;
 	c.oplen = sizeof(MMC_WRITE_12);
-	c.opcode[2] = start >> 24;
-	c.opcode[3] = (start >> 16) & 0xFF;
-	c.opcode[4] = (start >> 8) & 0xFF;
-	c.opcode[5] = start & 0xFF;
-	c.opcode[6] = len >> 24;
-	c.opcode[7] = (len >> 16) & 0xFF;
-	c.opcode[8] = (len >> 8) & 0xFF;
-	c.opcode[9] = len & 0xFF;
+	mmc_int_to_four_char(c.opcode + 2, start);
+	mmc_int_to_four_char(c.opcode + 6, len);
 	c.page = buf;
 	c.dir = TO_DRIVE;
 
@@ -491,10 +471,7 @@ int mmc_write(struct burn_drive *d, int start, struct buffer *buf)
 	memcpy(c.opcode, MMC_WRITE_10, sizeof(MMC_WRITE_10));
 	c.retry = 1;
 	c.oplen = sizeof(MMC_WRITE_10);
-	c.opcode[2] = start >> 24;
-	c.opcode[3] = (start >> 16) & 0xFF;
-	c.opcode[4] = (start >> 8) & 0xFF;
-	c.opcode[5] = start & 0xFF;
+	mmc_int_to_four_char(c.opcode + 2, start);
 	c.opcode[6] = 0;
 	c.opcode[7] = (len >> 8) & 0xFF;
 	c.opcode[8] = len & 0xFF;
@@ -1561,6 +1538,11 @@ void mmc_get_configuration(struct burn_drive *d)
 	if (cp == 0x15 && burn_support_untested_profiles) /* DVD-R/DL */
 		d->current_is_supported_profile = 1;
 #endif
+#ifdef Libburn_support_dvd_plusR
+	if ((cp == 0x1b || cp == 0x2b) &&
+	    burn_support_untested_profiles) /* DVD+R , DVD+R/DL */
+		d->current_is_supported_profile = 1;
+#endif
 
 /* Enable this to get loud and repeated reports about the feature set :
 #define Libburn_print_feature_descriptorS 1
@@ -1916,8 +1898,8 @@ int mmc_format_unit(struct burn_drive *d, off_t size, int flag)
 	c.page->data[1] = 0x02;                  /* Immed */
 	c.page->data[3] = 8;                     /* Format descriptor length */
 	num_of_blocks = size / 2048;
-	for (i = 0; i < 4; i++)
-		c.page->data[4 + i] = (num_of_blocks >> (24 - 8 * i)) & 0xff;
+	mmc_int_to_four_char(c.page->data + 4, num_of_blocks);
+
 	if (flag & 128) { /* explicitely chosen format descriptor */
 		/* use case: the app knows what to do */
 
@@ -1947,9 +1929,7 @@ selected_not_suitable:;
 		if (flag & 4) {
 			num_of_blocks =
 				d->format_descriptors[index].size / 2048;
-			for (i = 0; i < 4; i++)
-				c.page->data[4 + i] =
-					(num_of_blocks >> (24 - 8 * i)) & 0xff;
+			mmc_int_to_four_char(c.page->data + 4, num_of_blocks);
 		}
 		if (format_type != 0x26)
 			for (i = 0; i < 3; i++)
@@ -2024,9 +2004,8 @@ selected_not_suitable:;
 					num_of_blocks = diff;
 			}
 			if (num_of_blocks > 0)
-				for (i = 0; i < 4; i++)
-					c.page->data[4 + i] =
-					(num_of_blocks >> (24 - 8 * i)) & 0xff;
+				mmc_int_to_four_char(c.page->data + 4,
+							num_of_blocks);
 		}
 		/* 6.5.4.2.8 , DVD-RW Quick Grow Last Border */
 		format_type = 0x13;
@@ -2050,9 +2029,8 @@ selected_not_suitable:;
 			if ((flag & 4)
 				|| d->best_format_type == full_format_type) {
 				num_of_blocks = d->best_format_size / 2048;
-				for (i = 0; i < 4; i++)
-					c.page->data[4 + i] =
-					(num_of_blocks >> (24 - 8 * i)) & 0xff;
+				mmc_int_to_four_char(c.page->data + 4,
+							num_of_blocks);
 			}
 
 		} else {
@@ -2356,6 +2334,10 @@ int mmc_compose_mode_page_5(struct burn_drive *d,
 		/* Packet Size */
 		pd[13] = 16;
 
+	} else if (d->current_profile == 0x1a || d->current_profile == 0x1b ||
+	           d->current_profile == 0x2b || d->current_profile == 0x12) {
+		/* not with DVD+R[W][/DL] or DVD-RAM */;
+		return 0;
 	} else {
 		/* Traditional setup for CD */
 

libburn/write.c

@@ -890,6 +890,84 @@ int burn_disc_init_write_status(struct burn_write_opts *o,
 }
 
 
+/* ts A70219 : API */
+int burn_precheck_write(struct burn_write_opts *o, struct burn_disc *disc,
+				 char reasons[BURN_REASONS_LEN], int silent)
+{
+	enum burn_write_types wt;
+	struct burn_drive *d = o->drive;
+	char msg[160], *reason_pt;
+	int no_media = 0;
+
+	reason_pt= reasons;
+	reasons[0] = 0;
+
+	/* check write mode against write job */
+	wt = burn_write_opts_auto_write_type(o, disc, reasons, 1);
+	if (wt == BURN_WRITE_NONE) {
+		if (strncmp(reasons, "MEDIA: ", 7)==0)
+			no_media = 1;
+		goto ex;
+	}
+
+	sprintf(reasons, "%s: ", d->current_profile_text);
+	reason_pt= reasons + strlen(reasons);
+	if (d->status == BURN_DISC_UNSUITABLE)
+		goto unsuitable_profile;
+	if (d->current_profile == 0x09 || d->current_profile == 0x0a) {
+		if (!burn_disc_write_is_ok(o, disc, (!!silent) << 1))
+			strcat(reasons, "unsuitable track mode found, ");
+		if (o->start_byte >= 0)
+			strcat(reasons, "write start address not supported, ");
+	} else if (d->current_profile == 0x1a || d->current_profile == 0x12) { 
+		/* DVD+RW , DVD-RAM */
+		if (o->start_byte >= 0 && (o->start_byte % 2048))
+			strcat(reasons,
+			 "write start address not properly aligned to 2048, ");
+	} else if (d->current_profile == 0x13) {
+		/* DVD-RW Restricted Overwrite */
+		if (o->start_byte >= 0 && (o->start_byte % 32768))
+			strcat(reasons,
+			  "write start address not properly aligned to 32k, ");
+	} else if (d->current_profile == 0x11 || d->current_profile == 0x14 ||
+	           d->current_profile == 0x15 ||
+	           d->current_profile == 0x1b || d->current_profile == 0x2b ) {
+		/* DVD-R* Sequential , DVD+R[/DL] */
+		if (o->start_byte >= 0)
+			strcat(reasons, "write start address not supported, ");
+	} else {
+unsuitable_profile:;
+		sprintf(msg, "Unsuitable media detected. Profile %4.4Xh  %s",
+			d->current_profile, d->current_profile_text);
+		if (!silent)
+			libdax_msgs_submit(libdax_messenger, d->global_index,
+				0x0002011e,
+				LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
+				msg, 0, 0);
+		strcat(reasons, "no suitable media profile detected, ");
+		return 0;
+	}
+ex:;
+	if (reason_pt[0]) {
+		if (no_media) {
+			if (!silent)
+				libdax_msgs_submit(libdax_messenger,
+				  d->global_index, 0x0002013a,
+				  LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
+				  "No suitable media detected", 0, 0);
+			return -1;
+		}
+		if (!silent)
+			libdax_msgs_submit(libdax_messenger,
+				  d->global_index, 0x00020139,
+				  LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
+				  "Write job parameters are unsuitable", 0, 0);
+		return 0;
+	}
+	return 1;
+}
+
+
 /* ts A70129 : learned much from dvd+rw-tools-7.0/growisofs_mmc.cpp */
 int burn_disc_open_track_dvd_minus_r(struct burn_write_opts *o,
 					struct burn_session *s, int tnum)
@@ -931,6 +1009,46 @@ int burn_disc_open_track_dvd_minus_r(struct burn_write_opts *o,
 }
 
 
+/* ts A70226 */
+int burn_disc_open_track_dvd_plus_r(struct burn_write_opts *o,
+					struct burn_session *s, int tnum)
+{
+	struct burn_drive *d = o->drive;
+	char msg[160];
+	int ret, lba, nwa;
+	off_t size;
+
+	ret = d->get_nwa(d, -1, &lba, &nwa);
+	sprintf(msg, 
+		"DVD+R pre-track %2.2d : get_nwa(%d), ret= %d , d->nwa= %d",
+		tnum+1, nwa, ret, d->nwa);
+	libdax_msgs_submit(libdax_messenger, d->global_index, 0x000002,
+			LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_ZERO, msg,0,0);
+	if (nwa > d->nwa)
+		d->nwa = nwa;
+	/* ts A70214 : eventually adjust already expanded size of track */
+	burn_track_apply_fillup(s->track[tnum], d->media_capacity_remaining,1);
+
+	if (o->write_type == BURN_WRITE_SAO) {
+ 		/* Round track size up to 32 KiB and reserve track */
+		size = ((off_t) burn_track_get_sectors(s->track[tnum]))
+			 * (off_t) 2048;
+		size = (size + (off_t) 0x7fff) & ~((off_t) 0x7fff);
+		ret = d->reserve_track(d, size);
+		if (ret <= 0) {
+			sprintf(msg, "Cannot reserve track of %.f bytes",
+				(double) size);
+			libdax_msgs_submit(libdax_messenger, d->global_index,
+				0x00020138,
+				LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
+				msg, 0, 0);
+			return 0;
+		}
+	}
+	return 1;
+}
+
+
 /* ts A70129 */
 int burn_disc_close_track_dvd_minus_r(struct burn_write_opts *o,
 					struct burn_session *s, int tnum)
@@ -956,6 +1074,28 @@ int burn_disc_close_track_dvd_minus_r(struct burn_write_opts *o,
 }
 
 
+/* ts A70226 */
+int burn_disc_close_track_dvd_plus_r(struct burn_write_opts *o,
+					struct burn_session *s, int tnum)
+{
+	struct burn_drive *d = o->drive;
+	char msg[80];
+
+	sprintf(msg,
+		"Closing track %2.2d  (absolute track and session number %d)",
+		tnum + 1, d->last_track_no);
+	libdax_msgs_submit(libdax_messenger, o->drive->global_index,0x00020119,
+			LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_HIGH, msg,0,0);
+
+	d->busy = BURN_DRIVE_CLOSING_SESSION;
+	d->close_track_session(d, 0, d->last_track_no); /* CLOSE TRACK, 001b */
+	d->close_track_session(d, 1, 0); /* CLOSE SESSION, 010b */
+	d->busy = BURN_DRIVE_WRITING;
+	d->last_track_no++;
+	return 1;
+}
+
+
 /* ts A61218 - A70129 */
 int burn_dvd_write_track(struct burn_write_opts *o,
 				struct burn_session *s, int tnum)
@@ -975,6 +1115,11 @@ int burn_dvd_write_track(struct burn_write_opts *o,
 		ret = burn_disc_open_track_dvd_minus_r(o, s, tnum);
 		if (ret <= 0)
 			goto ex;
+	} else if (d->current_profile == 0x1b || d->current_profile == 0x2b) {
+		/* DVD+R , DVD+R/DL */
+		ret = burn_disc_open_track_dvd_plus_r(o, s, tnum);
+		if (ret <= 0)
+			goto ex;
 	}
 
 	sectors = burn_track_get_sectors(t);
@@ -1035,7 +1180,12 @@ int burn_dvd_write_track(struct burn_write_opts *o,
 	    d->current_profile == 0x15) {
 		/* DVD-R, DVD-RW Sequential, DVD-R/DL Sequential */
 		ret = burn_disc_close_track_dvd_minus_r(o, s, tnum);
-		if (ret != 2)
+		if (ret <= 0)
+			goto ex;
+	} else if (d->current_profile == 0x1b || d->current_profile == 0x2b) {
+		/* DVD+R , DVD+R/DL */
+		ret = burn_disc_close_track_dvd_plus_r(o, s, tnum);
+		if (ret <= 0)
 			goto ex;
 	}
 	ret = 1;
@@ -1148,6 +1298,8 @@ int burn_dvd_write_session(struct burn_write_opts *o,
 			if (ret <= 0)
 				return 0;
 		}
+	} else if (d->current_profile == 0x1b || d->current_profile == 0x2b) {
+		/* DVD+R , DVD+R/DL do each track as an own session */;
 	}
 	return 1;
 }
@@ -1258,76 +1410,30 @@ int burn_disc_setup_dvd_minus_r(struct burn_write_opts *o,
 }
 
 
-/* ts A70219 : API */
-int burn_precheck_write(struct burn_write_opts *o, struct burn_disc *disc,
-				 char reasons[BURN_REASONS_LEN], int silent)
+/* ts A70226 : for DVD+R , DVD+R/DL */
+int burn_disc_setup_dvd_plus_r(struct burn_write_opts *o,
+				struct burn_disc *disc)
 {
-	enum burn_write_types wt;
 	struct burn_drive *d = o->drive;
-	char msg[160], *reason_pt;
-	int no_media = 0;
 
-	reason_pt= reasons;
-	reasons[0] = 0;
+	/* most setup is in burn_disc_setup_track_dvd_plus_r() */;
 
-	/* check write mode against write job */
-	wt = burn_write_opts_auto_write_type(o, disc, reasons, 1);
-	if (wt == BURN_WRITE_NONE) {
-		if (strncmp(reasons, "MEDIA: ", 7)==0)
-			no_media = 1;
-		goto ex;
-	}
+	d->nwa = 0;
+	return 1;
+}
 
-	sprintf(reasons, "%s: ", d->current_profile_text);
-	reason_pt= reasons + strlen(reasons);
-	if (d->current_profile == 0x09 || d->current_profile == 0x0a) {
-		if (!burn_disc_write_is_ok(o, disc, (!!silent) << 1))
-			strcat(reasons, "unsuitable track mode found, ");
-		if (o->start_byte >= 0)
-			strcat(reasons, "write start address not supported, ");
-	} else if (d->current_profile == 0x1a || d->current_profile == 0x12) { 
-		/* DVD+RW , DVD-RAM */
-		if (o->start_byte >= 0 && (o->start_byte % 2048))
-			strcat(reasons,
-			 "write start address not properly aligned to 2048, ");
-	} else if (d->current_profile == 0x13) {
-		/* DVD-RW Restricted Overwrite */
-		if (o->start_byte >= 0 && (o->start_byte % 32768))
-			strcat(reasons,
-			  "write start address not properly aligned to 32k, ");
-	} else if (d->current_profile == 0x11 || d->current_profile == 0x14 ||
-			d->current_profile == 0x15) {
-		/* DVD-R* Sequential */
-		if (o->start_byte >= 0)
-			strcat(reasons, "write start address not supported, ");
-	} else {
-		sprintf(msg, "Unsuitable media detected. Profile %4.4Xh  %s",
-			d->current_profile, d->current_profile_text);
-		if (!silent)
-			libdax_msgs_submit(libdax_messenger, d->global_index,
-				0x0002011e,
-				LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
-				msg, 0, 0);
-		strcat(reasons, "no suitable media profile detected, ");
-		return 0;
-	}
-ex:;
-	if (reason_pt[0]) {
-		if (no_media) {
-			if (!silent)
-				libdax_msgs_submit(libdax_messenger,
-				  d->global_index, 0x0002013a,
-				  LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
-				  "No suitable media detected", 0, 0);
-			return -1;
-		}
-		if (!silent)
-			libdax_msgs_submit(libdax_messenger,
-				  d->global_index, 0x00020139,
-				  LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
-				  "Write job parameters are unsuitable", 0, 0);
-		return 0;
-	}
+
+/* ts A70229 */
+int burn_disc_finalize_dvd_plus_r(struct burn_write_opts *o)
+{
+	struct burn_drive *d = o->drive;
+
+	if (o->multi)
+		return 2;
+	d->busy = BURN_DRIVE_CLOSING_SESSION;
+	/* CLOSE SESSION, 101b, Finalize with minimal radius */
+	d->close_track_session(d, 2, 1);  /* (2<<1)|1 = 5 */
+	d->busy = BURN_DRIVE_WRITING;
 	return 1;
 }
 
@@ -1534,6 +1640,38 @@ int burn_dvd_write_sync(struct burn_write_opts *o,
 		/* ??? padding needed ??? cowardly doing it for now */
 		o->obs_pad = 1; /* fill-up track's last 32k buffer */
 		
+	} else if (d->current_profile == 0x1b || d->current_profile == 0x2b) {
+		/* DVD+R , DVD+R/DL */
+		t = disc->session[0]->track[0];
+		o_end = ( burn_track_is_open_ended(t) && !o->fill_up_media );
+		default_size = burn_track_get_default_size(t);
+
+#ifndef Libburn_precheck_write_ruleS
+		/* >>> oldfashioned checks hopefully never re-enabled */
+#endif /* ! Libburn_precheck_write_ruleS */
+
+		if (o->write_type == BURN_WRITE_SAO && o_end) {
+			sprintf(msg, "Activated track default size %.f",
+				(double) default_size);
+			libdax_msgs_submit(libdax_messenger,
+				  d->global_index, 0x0002012e,
+				  LIBDAX_MSGS_SEV_NOTE, LIBDAX_MSGS_PRIO_HIGH,
+				  msg, 0, 0);
+			burn_track_set_size(t, default_size);
+		}
+		ret = burn_disc_setup_dvd_plus_r(o, disc);
+		if (ret <= 0) {
+			sprintf(msg,
+			  "Write preparation setup failed for DVD+R");
+			libdax_msgs_submit(libdax_messenger, d->global_index,
+				0x00020121,
+				LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
+				msg, 0, 0);
+			goto early_failure;
+		}
+		/* ??? padding needed ??? cowardly doing it for now */
+		o->obs_pad = 1; /* fill-up track's last 32k buffer */
+
 #ifndef Libburn_precheck_write_ruleS
 	/* <<< covered by burn_precheck_write() */
 	} else {
@@ -1564,8 +1702,11 @@ int burn_dvd_write_sync(struct burn_write_opts *o,
 		d->progress.sectors = 0;
 	}
 
-	/* >>> eventual normal  finalization measures */
-
+	if (d->current_profile == 0x1b || d->current_profile == 0x2b) {
+		ret = burn_disc_finalize_dvd_plus_r(o);
+		if (ret <= 0)
+			goto ex;
+	}
 	ret = 1;
 ex:;