[PATCH] DVD+RW support for 2.6.7-bk13

[PATCH] DVD+RW support for 2.6.7-bk13

[Peter Osterlund]

This patch adds support for using DVD+RW drives as writable block
devices under the 2.6.7-bk13 kernel.

The patch is based on work from:

        Andy Polyakov <appro@fy.chalmers.se> - Wrote the 2.4 patch
        Nigel Kukard <nkukard@lbsd.net> - Initial porting to 2.6.x

It works for me using an Iomega Super DVD 8x USB drive.


Signed-off-by: Peter Osterlund <petero2@telia.com>

---

 linux-petero/drivers/cdrom/cdrom.c |   80 +++++++++++++++++++++++++++++++++++++
 linux-petero/drivers/ide/ide-cd.c  |    2 
 linux-petero/drivers/scsi/sr.c     |    1 
 linux-petero/include/linux/cdrom.h |    2 
 4 files changed, 85 insertions(+)

diff -puN drivers/cdrom/cdrom.c~dvd+rw drivers/cdrom/cdrom.c
--- linux/drivers/cdrom/cdrom.c~dvd+rw	2004-07-01 15:10:46.706913160 +0200
+++ linux-petero/drivers/cdrom/cdrom.c	2004-07-01 15:10:46.720911032 +0200
@@ -821,6 +821,41 @@ static int cdrom_ram_open_write(struct c
 	return ret;
 }
 
+static void cdrom_mmc3_profile(struct cdrom_device_info *cdi)
+{
+	struct packet_command cgc;
+	char buffer[32];
+	int ret, mmc3_profile;
+
+	init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ);
+
+	cgc.cmd[0] = GPCMD_GET_CONFIGURATION;
+	cgc.cmd[1] = 0;
+	cgc.cmd[2] = cgc.cmd[3] = 0;		/* Starting Feature Number */
+	cgc.cmd[7] = 0; cgc.cmd [8] = 8;	/* Allocation Length */
+	cgc.quiet = 1;
+
+	if ((ret = cdi->ops->generic_packet(cdi, &cgc))) {
+		mmc3_profile = 0xffff;
+	} else {
+		mmc3_profile = (buffer[6] << 8) | buffer[7];
+		printk(KERN_INFO "cdrom: %s: mmc-3 profile capable, current profile: %Xh\n",
+		       cdi->name, mmc3_profile);
+	}
+	cdi->mmc3_profile = mmc3_profile;
+}
+
+static int cdrom_is_dvd_rw(struct cdrom_device_info *cdi)
+{
+	switch (cdi->mmc3_profile) {
+	case 0x12:	/* DVD-RAM	*/
+	case 0x1A:	/* DVD+RW	*/
+		return 0;
+	default:
+		return 1;
+	}
+}
+
 /*
  * returns 0 for ok to open write, non-0 to disallow
  */
@@ -859,10 +894,50 @@ static int cdrom_open_write(struct cdrom
  		ret = cdrom_ram_open_write(cdi);
 	else if (CDROM_CAN(CDC_MO_DRIVE))
 		ret = mo_open_write(cdi);
+	else if (!cdrom_is_dvd_rw(cdi))
+		ret = 0;
 
 	return ret;
 }
 
+static void cdrom_dvd_rw_close_write(struct cdrom_device_info *cdi)
+{
+	struct packet_command cgc;
+
+	if (cdi->mmc3_profile != 0x1a) {
+		cdinfo(CD_CLOSE, "%s: No DVD+RW\n", cdi->name);
+		return;
+	}
+
+	if (!cdi->media_written) {
+		cdinfo(CD_CLOSE, "%s: DVD+RW media clean\n", cdi->name);
+		return;
+	}
+
+	printk(KERN_INFO "cdrom: %s: dirty DVD+RW media, \"finalizing\"\n",
+	       cdi->name);
+
+	init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE);
+	cgc.cmd[0] = GPCMD_FLUSH_CACHE;
+	cgc.timeout = 30*HZ;
+	cdi->ops->generic_packet(cdi, &cgc);
+
+	init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE);
+	cgc.cmd[0] = GPCMD_CLOSE_TRACK;
+	cgc.timeout = 3000*HZ;
+	cgc.quiet = 1;
+	cdi->ops->generic_packet(cdi, &cgc);
+
+	init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE);
+	cgc.cmd[0] = GPCMD_CLOSE_TRACK;
+	cgc.cmd[2] = 2;	 /* Close session */
+	cgc.quiet = 1;
+	cgc.timeout = 3000*HZ;
+	cdi->ops->generic_packet(cdi, &cgc);
+
+	cdi->media_written = 0;
+}
+
 static int cdrom_close_write(struct cdrom_device_info *cdi)
 {
 #if 0
@@ -895,6 +970,7 @@ int cdrom_open(struct cdrom_device_info 
 		ret = open_for_data(cdi);
 		if (ret)
 			goto err;
+		cdrom_mmc3_profile(cdi);
 		if (fp->f_mode & FMODE_WRITE) {
 			ret = -EROFS;
 			if (!CDROM_CAN(CDC_RAM))
@@ -902,6 +978,7 @@ int cdrom_open(struct cdrom_device_info 
 			if (cdrom_open_write(cdi))
 				goto err;
 			ret = 0;
+			cdi->media_written = 0;
 		}
 	}
 
@@ -1093,6 +1170,8 @@ int cdrom_release(struct cdrom_device_in
 		cdi->use_count--;
 	if (cdi->use_count == 0)
 		cdinfo(CD_CLOSE, "Use count for \"/dev/%s\" now zero\n", cdi->name);
+	if (cdi->use_count == 0)
+		cdrom_dvd_rw_close_write(cdi);
 	if (cdi->use_count == 0 &&
 	    (cdo->capability & CDC_LOCK) && !keeplocked) {
 		cdinfo(CD_CLOSE, "Unlocking door!\n");
@@ -1299,6 +1378,7 @@ int media_changed(struct cdrom_device_in
 	if (cdi->ops->media_changed(cdi, CDSL_CURRENT)) {
 		cdi->mc_flags = 0x3;    /* set bit on both queues */
 		ret |= 1;
+		cdi->media_written = 0;
 	}
 	cdi->mc_flags &= ~mask;         /* clear bit */
 	return ret;
diff -puN drivers/scsi/sr.c~dvd+rw drivers/scsi/sr.c
--- linux/drivers/scsi/sr.c~dvd+rw	2004-07-01 15:10:46.708912856 +0200
+++ linux-petero/drivers/scsi/sr.c	2004-07-01 15:10:46.721910880 +0200
@@ -379,6 +379,7 @@ static int sr_init_command(struct scsi_c
 			return 0;
 		SCpnt->cmnd[0] = WRITE_10;
 		SCpnt->sc_data_direction = DMA_TO_DEVICE;
+ 	 	cd->cdi.media_written = 1;
 	} else if (rq_data_dir(SCpnt->request) == READ) {
 		SCpnt->cmnd[0] = READ_10;
 		SCpnt->sc_data_direction = DMA_FROM_DEVICE;
diff -puN drivers/ide/ide-cd.c~dvd+rw drivers/ide/ide-cd.c
--- linux/drivers/ide/ide-cd.c~dvd+rw	2004-07-01 15:10:46.711912400 +0200
+++ linux-petero/drivers/ide/ide-cd.c	2004-07-01 15:10:46.724910424 +0200
@@ -1940,6 +1940,8 @@ static ide_startstop_t cdrom_start_write
 	info->dma = drive->using_dma ? 1 : 0;
 	info->cmd = WRITE;
 
+	info->devinfo.media_written = 1;
+
 	/* Start sending the write request to the drive. */
 	return cdrom_start_packet_command(drive, 32768, cdrom_start_write_cont);
 }
diff -puN include/linux/cdrom.h~dvd+rw include/linux/cdrom.h
--- linux/include/linux/cdrom.h~dvd+rw	2004-07-01 15:10:46.713912096 +0200
+++ linux-petero/include/linux/cdrom.h	2004-07-01 15:10:46.725910272 +0200
@@ -947,6 +947,8 @@ struct cdrom_device_info {
         __u8 reserved		: 6;	/* not used yet */
 	int cdda_method;		/* see flags */
 	__u8 last_sense;
+	__u8 media_written;		/* dirty flag, DVD+RW bookkeeping */
+	unsigned short mmc3_profile;	/* current MMC3 profile */
 	int for_data;
 	int (*exit)(struct cdrom_device_info *);
 	int mrw_mode_page;
_

-- 
Peter Osterlund - petero2@telia.com
http://w1.894.telia.com/~u89404340

Re: [PATCH] DVD+RW support for 2.6.7-bk13

[Wakko Warner]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset=unknown-8bit, Size: 505 bytes --]

> This patch adds support for using DVD+RW drives as writable block
> devices under the 2.6.7-bk13 kernel.
> 
> The patch is based on work from:
> 
>         Andy Polyakov <appro@fy.chalmers.se> - Wrote the 2.4 patch
>         Nigel Kukard <nkukard@lbsd.net> - Initial porting to 2.6.x
> 
> It works for me using an Iomega Super DVD 8x USB drive.

Any chance of this working with dvd±r?  (Same question for cd-r on the other
patch).

-- 
 Lab tests show that use of micro$oft causes cancer in lab animals

Re: [PATCH] DVD+RW support for 2.6.7-bk13

[Peter Osterlund]

Wakko Warner <wakko@animx.eu.org> writes:

> > This patch adds support for using DVD+RW drives as writable block
> > devices under the 2.6.7-bk13 kernel.
> > 
> > The patch is based on work from:
> > 
> >         Andy Polyakov <appro@fy.chalmers.se> - Wrote the 2.4 patch
> >         Nigel Kukard <nkukard@lbsd.net> - Initial porting to 2.6.x
> > 
> > It works for me using an Iomega Super DVD 8x USB drive.
> 
> Any chance of this working with dvd±r?  (Same question for cd-r on the other
> patch).

No, not for now. I think support for non-rewritable media requires
changes both in the udf filesystem and in the pktcdvd driver.

-- 
Peter Osterlund - petero2@telia.com
http://w1.894.telia.com/~u89404340

Re: [PATCH] DVD+RW support for 2.6.7-bk13

[Wakko Warner]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset=unknown-8bit, Size: 472 bytes --]

> > Any chance of this working with dvd?r?  (Same question for cd-r on the other
> > patch).
> 
> No, not for now. I think support for non-rewritable media requires
> changes both in the udf filesystem and in the pktcdvd driver.

I can understand that.  If I wish to write to dvd±rw, do i need both
patches?

The one use for dvd±r would be for backup archival when the disc isn't going
to be filled.

-- 
 Lab tests show that use of micro$oft causes cancer in lab animals

Re: [PATCH] DVD+RW support for 2.6.7-bk13

[Peter Osterlund]

Wakko Warner <wakko@animx.eu.org> writes:

> > > Any chance of this working with dvd?r?  (Same question for cd-r on the other
> > > patch).
> > 
> > No, not for now. I think support for non-rewritable media requires
> > changes both in the udf filesystem and in the pktcdvd driver.
> 
> I can understand that.  If I wish to write to dvd±rw, do i need both
> patches?

For DVD+RW, you don't need any additional patches. For DVD-RW, you
need the packet writing patch and the patch below.

You can also use the packet writing patch for DVD+RW to improve
performance in case the drive firmware is not good at handling small
writes. (This seems to be the case with my drive.)


Signed-off-by: Peter Osterlund <petero2@telia.com>

---

 linux-petero/drivers/block/Kconfig   |    3 +-
 linux-petero/drivers/block/pktcdvd.c |   37 ++++++++++++++++++++++++++++++++---
 linux-petero/include/linux/pktcdvd.h |    1 
 3 files changed, 37 insertions(+), 4 deletions(-)

diff -puN drivers/block/Kconfig~dvd-rw-packet drivers/block/Kconfig
--- linux/drivers/block/Kconfig~dvd-rw-packet	2004-07-01 15:10:50.000000000 +0200
+++ linux-petero/drivers/block/Kconfig	2004-07-01 15:10:51.000000000 +0200
@@ -348,7 +348,8 @@ config CDROM_PKTCDVD
 	  compliant ATAPI or SCSI drive, which is just about any newer CD
 	  writer.
 
-	  Currently only writing to CD-RW discs is possible.
+	  Currently only writing to CD-RW, DVD-RW and DVD+RW discs is possible.
+	  DVD-RW disks must be in restricted overwrite mode.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called pktcdvd.
diff -puN drivers/block/pktcdvd.c~dvd-rw-packet drivers/block/pktcdvd.c
--- linux/drivers/block/pktcdvd.c~dvd-rw-packet	2004-07-01 15:10:50.000000000 +0200
+++ linux-petero/drivers/block/pktcdvd.c	2004-07-02 14:44:14.292566688 +0200
@@ -1410,6 +1410,10 @@ static int pkt_set_write_settings(struct
 	char buffer[128];
 	int ret, size;
 
+	/* doesn't apply to DVD+RW */
+	if (pd->mmc3_profile == 0x1a)
+		return 0;
+
 	memset(buffer, 0, sizeof(buffer));
 	init_cdrom_command(&cgc, buffer, sizeof(*wp), CGC_DATA_READ);
 	cgc.sense = &sense;
@@ -1515,6 +1519,18 @@ static int pkt_good_track(track_informat
  */
 static int pkt_good_disc(struct pktcdvd_device *pd, disc_information *di)
 {
+	switch (pd->mmc3_profile) {
+		case 0x0a: /* CD-RW */
+		case 0xffff: /* MMC3 not supported */
+			break;
+		case 0x1a: /* DVD+RW */
+		case 0x13: /* DVD-RW */
+			return 0;
+		default:
+			printk("pktcdvd: Wrong disc profile (%x)\n", pd->mmc3_profile);
+			return 1;
+	}
+
 	/*
 	 * for disc type 0xff we should probably reserve a new track.
 	 * but i'm not sure, should we leave this to user apps? probably.
@@ -1544,10 +1560,18 @@ static int pkt_good_disc(struct pktcdvd_
 
 static int pkt_probe_settings(struct pktcdvd_device *pd)
 {
+	struct packet_command cgc;
+	unsigned char buf[12];
 	disc_information di;
 	track_information ti;
 	int ret, track;
 
+	init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ);
+	cgc.cmd[0] = GPCMD_GET_CONFIGURATION;
+	cgc.cmd[8] = 8;
+	ret = pkt_generic_packet(pd, &cgc);
+	pd->mmc3_profile = ret ? 0xffff : buf[6] << 8 | buf[7];
+
 	memset(&di, 0, sizeof(disc_information));
 	memset(&ti, 0, sizeof(track_information));
 
@@ -1845,9 +1869,16 @@ static int pkt_open_write(struct pktcdvd
 
 	if ((ret = pkt_get_max_speed(pd, &write_speed)))
 		write_speed = 16;
-	if ((ret = pkt_media_speed(pd, &media_write_speed)))
-		media_write_speed = 16;
-	write_speed = min(write_speed, media_write_speed);
+	switch (pd->mmc3_profile) {
+		case 0x13: /* DVD-RW */
+		case 0x1a: /* DVD+RW */
+			break;
+		default:
+			if ((ret = pkt_media_speed(pd, &media_write_speed)))
+				media_write_speed = 16;
+			write_speed = min(write_speed, media_write_speed);
+			break;
+	}
 	read_speed = write_speed;
 
 	if ((ret = pkt_set_speed(pd, write_speed, read_speed))) {
diff -puN include/linux/pktcdvd.h~dvd-rw-packet include/linux/pktcdvd.h
--- linux/include/linux/pktcdvd.h~dvd-rw-packet	2004-07-01 15:10:50.000000000 +0200
+++ linux-petero/include/linux/pktcdvd.h	2004-07-01 15:10:51.000000000 +0200
@@ -243,6 +243,7 @@ struct pktcdvd_device
 	__u8			mode_offset;	/* 0 / 8 */
 	__u8			type;
 	unsigned long		flags;
+	__u16			mmc3_profile;
 	__u32			nwa;		/* next writable address */
 	__u32			lra;		/* last recorded address */
 	struct packet_cdrw	cdrw;
_

-- 
Peter Osterlund - petero2@telia.com
http://w1.894.telia.com/~u89404340

Re: [PATCH] DVD+RW support for 2.6.7-bk13

[Peter Osterlund]

On Fri, 2 Jul 2004, Andrew Morton wrote:

> It wasn't obvious whether or not I was supposed to apply this, but I
> did.

Yes, I wanted you to apply it, thanks.

> What's it do?

It implements packet writing for DVD+RW and DVD-RW discs. Hopefully this
patch makes it more clear:


Added information about packet writing for DVD+RW and DVD-RW media.

Signed-off-by: Peter Osterlund <petero2@telia.com>

---

 linux-petero/Documentation/cdrom/packet-writing.txt |   66 ++++++++++++++++++++
 1 files changed, 66 insertions(+)

diff -puN Documentation/cdrom/packet-writing.txt~packet-doc-update Documentation/cdrom/packet-writing.txt
--- linux/Documentation/cdrom/packet-writing.txt~packet-doc-update	2004-07-03 01:37:28.573726096 +0200
+++ linux-petero/Documentation/cdrom/packet-writing.txt	2004-07-03 02:15:32.680489088 +0200
@@ -20,3 +20,69 @@ Getting started quick

 - Now you can mount /dev/pktcdvd0 and copy files to it. Enjoy!
 	# mount /dev/pktcdvd0 /cdrom -t udf -o rw,noatime
+
+
+Packet writing for DVD-RW media
+-------------------------------
+
+DVD-RW discs can be written to much like CD-RW discs if they are in
+the so called "restricted overwrite" mode. To put a disc in restricted
+overwrite mode, run:
+
+	# dvd+rw-format /dev/hdc
+
+You can then use the disc the same way you would use a CD-RW disc:
+
+	# pktsetup /dev/pktcdvd0 /dev/hdc
+	# mount /dev/pktcdvd0 /cdrom -t udf -o rw,noatime
+
+
+Packet writing for DVD+RW media
+-------------------------------
+
+According to the DVD+RW specification, a drive supporting DVD+RW discs
+shall implement "true random writes with 2KB granularity", which means
+that it should be possible to put any filesystem with a block size >=
+2KB on such a disc. For example, it should be possible to do:
+
+	# mkudffs /dev/hdc
+	# mount /dev/hdc /cdrom -t udf -o rw,noatime
+
+However, some drives don't follow the specification and expect the
+host to perform aligned writes at 32KB boundaries. Other drives does
+follow the specification, but suffer bad performance problems if the
+writes are not 32KB aligned.
+
+Both problems can be solved by using the pktcdvd driver, which always
+generates aligned writes.
+
+	# pktsetup /dev/pktcdvd0 /dev/hdc
+	# mkudffs /dev/pktcdvd0
+	# mount /dev/pktcdvd0 /cdrom -t udf -o rw,noatime
+
+
+Notes
+-----
+
+- CD-RW media can usually not be overwritten more than about 1000
+  times, so to avoid unnecessary wear on the media, you should always
+  use the noatime mount option.
+
+- Defect management (ie automatic remapping of bad sectors) has not
+  been implemented yet, so you are likely to get at least some
+  filesystem corruption if the disc wears out.
+
+- Since the pktcdvd driver makes the disc appear as a regular block
+  device, you can put any filesystem you like on the disc. For
+  example, run:
+
+	# /sbin/mke2fs /dev/pktcdvd0
+
+  to create an ext2 filesystem on the disc.
+
+
+Links
+-----
+
+See http://fy.chalmers.se/~appro/linux/DVD+RW/ for more information
+about DVD writing.
_

-- 
Peter Osterlund - petero2@telia.com
http://w1.894.telia.com/~u89404340

Re: [PATCH] DVD+RW support for 2.6.7-bk13

[Peter Osterlund]

Peter Osterlund <petero2@telia.com> writes:

> This patch adds support for using DVD+RW drives as writable block
> devices under the 2.6.7-bk13 kernel.
> 
> The patch is based on work from:
> 
>         Andy Polyakov <appro@fy.chalmers.se> - Wrote the 2.4 patch
>         Nigel Kukard <nkukard@lbsd.net> - Initial porting to 2.6.x
...
>  linux-petero/drivers/cdrom/cdrom.c |   80 +++++++++++++++++++++++++++++++++++++
>  linux-petero/drivers/ide/ide-cd.c  |    2 
>  linux-petero/drivers/scsi/sr.c     |    1 
>  linux-petero/include/linux/cdrom.h |    2 

Nigel pointed out that the earlier patches contained attributions that
are not present in this patch. The 2.4 patch contains:

  Nov 5 2001, Aug 8 2002. Modified by Andy Polyakov
  <appro@fy.chalmers.se> to support MMC-3 complaint DVD+RW units.

and Nigel changed it to this in his 2.6 patch:

  Modified by Nigel Kukard <nkukard@lbsd.net> - support DVD+RW
  2.4.x patch by Andy Polyakov <appro@fy.chalmers.se>

The patch I sent you deleted most of the earlier work and moved the
rest to cdrom.c, but the comments were not moved over, since the
earlier authors didn't modify cdrom.c.

Nigel wants to get credit for his work though, so were should we put
those messages? Is this patch acceptable?


 linux-petero/drivers/cdrom/cdrom.c |    6 ++++++
 1 files changed, 6 insertions(+)

diff -puN drivers/cdrom/cdrom.c~packet-copyright drivers/cdrom/cdrom.c
--- linux/drivers/cdrom/cdrom.c~packet-copyright	2004-09-01 20:03:13.075394816 +0200
+++ linux-petero/drivers/cdrom/cdrom.c	2004-09-01 20:31:57.282275528 +0200
@@ -234,6 +234,12 @@
   -- Mt Rainier support
   -- DVD-RAM write open fixes
 
+  Nov 5 2001, Aug 8 2002. Modified by Andy Polyakov
+  <appro@fy.chalmers.se> to support MMC-3 compliant DVD+RW units.
+
+  Modified by Nigel Kukard <nkukard@lbsd.net> - support DVD+RW
+  2.4.x patch by Andy Polyakov <appro@fy.chalmers.se>
+
 -------------------------------------------------------------------------*/
 
 #define REVISION "Revision: 3.20"
_

-- 
Peter Osterlund - petero2@telia.com
http://w1.894.telia.com/~u89404340

Re: [PATCH] DVD+RW support for 2.6.7-bk13

[Nigel Kukard]

[-- Attachment #1: Type: text/plain, Size: 1774 bytes --]

> Nigel pointed out that the earlier patches contained attributions that
> are not present in this patch. The 2.4 patch contains:
> 
>   Nov 5 2001, Aug 8 2002. Modified by Andy Polyakov
>   <appro@fy.chalmers.se> to support MMC-3 complaint DVD+RW units.
> 
> and Nigel changed it to this in his 2.6 patch:
> 
>   Modified by Nigel Kukard <nkukard@lbsd.net> - support DVD+RW
>   2.4.x patch by Andy Polyakov <appro@fy.chalmers.se>
> 
> The patch I sent you deleted most of the earlier work and moved the
> rest to cdrom.c, but the comments were not moved over, since the
> earlier authors didn't modify cdrom.c.
> 
> Nigel wants to get credit for his work though, so were should we put
> those messages? Is this patch acceptable?
> 

Thanks Peter  ;-) 


Andy wrote the support for 2.4, I basically ported it to 2.6. Make sure
you included aswell though, your help is greatly appreciated!

Everyone, enjoy your day!

-Nigel


> 
>  linux-petero/drivers/cdrom/cdrom.c |    6 ++++++
>  1 files changed, 6 insertions(+)
> 
> diff -puN drivers/cdrom/cdrom.c~packet-copyright drivers/cdrom/cdrom.c
> --- linux/drivers/cdrom/cdrom.c~packet-copyright	2004-09-01 20:03:13.075394816 +0200
> +++ linux-petero/drivers/cdrom/cdrom.c	2004-09-01 20:31:57.282275528 +0200
> @@ -234,6 +234,12 @@
>    -- Mt Rainier support
>    -- DVD-RAM write open fixes
>  
> +  Nov 5 2001, Aug 8 2002. Modified by Andy Polyakov
> +  <appro@fy.chalmers.se> to support MMC-3 compliant DVD+RW units.
> +
> +  Modified by Nigel Kukard <nkukard@lbsd.net> - support DVD+RW
> +  2.4.x patch by Andy Polyakov <appro@fy.chalmers.se>
> +
>  -------------------------------------------------------------------------*/
>  
>  #define REVISION "Revision: 3.20"
> _

[-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --]