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Re: how to read second track of a multisessioned dvd+r, in the burner ?
Andrea Tasso wrote: Hi all, I burn a dvd+r, with multisession. The commands I issued were: growisofs -Z /dev/dvd -R -J firstfile growisofs -M /dev/dvd -R -J secondfile how can I access secondfile ? I am trying to do it in the same recorder I used to burn the dvd, not in a dvd-ROM ... if I try mount -t iso9660 /dev/scd0 /mnt I see only firstfile. I tried the session=x option of mount, too, but it does not work. I was not able to guess if and how to use the sbsector=xxx option. Below you can see the output of dvd+rw-mediainfo for my dvd ... any help ? thanks and bye, Andrea The session info, like the partition table on a hard disk, is cached, it seems. If you eject and reload it should work fine. -- E. Robert Bogusta It seemed like a good idea at the time -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Interesting DVD behaviour
Dan The Carpetman wrote: I have the same problem. After spending 5 hours with Sony tech support all the way up to their engineers, I found that once you upgrade the firmware to 1.40 + your drive will burn 1X 2X DVD at 1X only. 4X DVD will burn at 2X. The upgrade cut back the speed so the drive won't burn out if you use 4X media.The Sony site had a warning that you must upgrade the firmware or you will damage your drive using 4X media. It also states the this upgrade will improve your drives performance! Sony say that they are working on changing their webpage to give the correct info. I just purchased 50 Pioneer certified ProDisk 2X blanks. Nero will only let them burn at 1X. Now that I've upgraded my drive is only half the speed it used to be. Sony told me that their is no way change the firmware back! The bottom line here is not to upgrade the firmware and don't use 4X media. Did you actually try running an older firmware back in? Or if your drive is supported by Joerg's loader, did you try that? A 2x drive which doesn't burn 2x media is broken, you should look to RMA it or get a refund if they don't make it work correctly. -- E. Robert Bogusta It seemed like a good idea at the time
growisofs + problem reading files from recorded dvd-r's
Hello everyone. I have a problem while recording DVD-R's using growisofs. The recording usually finishes without any errors and everything seems to be OK, but when I try and access files on the DVD I get the following error on my syslog: Feb 21 20:58:53 homer kernel: scsi0: ERROR on channel 0, id 0, lun 0, CDB: Request Sense 00 00 00 40 00 Feb 21 20:58:53 homer kernel: Info fld=0x22c0d6, Current sd0b:00: sense key Medium Error Feb 21 20:58:53 homer kernel: Additional sense indicates Id CRC or ECC error Feb 21 20:58:53 homer kernel: I/O error: dev 0b:00, sector 9110360 This doesn't happen for all the files on the DVD, but usually on just one file. The rest of the files seem to be just fine. The media that I've been using is Memorex 4x DVD-R's, but I the same happens while using other media. I usually record on 2x speed, but the same happens when recording on 1x speed as well. The DVD recorder is a: 0,0,0 0) 'MATSHITA' 'DVD-RAM UJ-811 ' 'H101' Removable CD-ROM and growisofs is: * growisofs by [EMAIL PROTECTED], version 5.16 but the same happens with the 5.17 version. Currently I am using kernel 2.4.25, and this happens with all 2.4.x kernels, but I think that everything is OK using 2.6.x and ide-cd instead of ide-scsi, but unfortunately I cannot switch to 2.6.x due to a usb+ppp_async bug. Any ideas on what might be going bad and/or how I might be able to work around this problem. Thanks very much, Cirrus -- /* These are the most dangerous and useful defines. They do printk() during * the interrupt processing routine(s), so if you manage to get flooded by * irq's, start thinking about the Power off/on button... */ 2.2.16 /usr/src/linux/drivers/sbus/char/aurora.h -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
未承諾広告＊２億、３億、５億９千万円収入者が続出しています。
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Re: how to read second track of a multisessioned dvd+r, in the burner ?
Andrea Tasso wrote: Hi all, I burn a dvd+r, with multisession. The commands I issued were: growisofs -Z /dev/dvd -R -J firstfile growisofs -M /dev/dvd -R -J secondfile how can I access secondfile ? I am trying to do it in the same recorder I used to burn the dvd, not in a dvd-ROM ... if I try mount -t iso9660 /dev/scd0 /mnt I see only firstfile. I tried the session=x option of mount, too, but it does not work. I was not able to guess if and how to use the sbsector=xxx option. Below you can see the output of dvd+rw-mediainfo for my dvd ... any help ? thanks and bye, Andrea The session info, like the partition table on a hard disk, is cached, it seems. If you eject and reload it should work fine. -- E. Robert Bogusta It seemed like a good idea at the time
Re: growisofs cannot set speed
[EMAIL PROTECTED]:/scr growisofs -speed=4 -dvd-video -Z /dev/sr0=image Executing 'builtin_dd if=image of=/dev/sr0 obs=32k seek=0' :-( Failed to change write speed: 8310-5540 On the other hand, setting no speed at all, results in a burning process starting at 6x, then ending at 8x: ... [EMAIL PROTECTED]:~/tmp dvd+rw-mediainfo /dev/sr0 Current Write Speed: 8.0x1385=11080KB/s ^^^ Perfectly agrees with the fact that original recording was performed at 8x... [EMAIL PROTECTED]:/arch growisofs -dvd-video -speed=4 -Z /dev/sr0=image :-( Failed to change write speed: 8310-5540 [EMAIL PROTECTED]:/arch dvd+rw-mediainfo /dev/sr0 Current Write Speed: 4.0x1385=5540KB/s ^^^ If followed by growisofs *without* -speed argument recording should have been performed at 4x... [EMAIL PROTECTED]:/arch growisofs -dvd-video -speed=1 -Z /dev/sr0=image :-( Failed to change write speed: 8310-3324 [EMAIL PROTECTED]:/arch dvd+rw-mediainfo /dev/sr0 Current Write Speed: 2.4x1385=3324KB/s ^^^ If followed by growisofs *without* -speed argument recording should have been performed at 2.4x... I bet by now you wonder how come growisofs says failed to change write speed, if information is right there? Point is that if unit was found to reply to GET [CURRENT] PERFORMANCE command, then Current Write Speed value is disregarded. Why? For following reasons: 1. This value comes from Page2A, which was classified as no longer recommended for use in latest MMC specification; 2. There is a number of units, which either don't provide this information through Page2A (e.g. Ricoh derivatives) or provide *bogus* information through Page2A (e.g. NEC derivatives). Given 1. it's not a violation of standard. 3. Those units which were found to reply to GET [CURRENT] PERFORMANCE command were also found to provide *current* writing speed there. Given that growisofs is designed to be a common denomiator for all units, it first simply checks if unit replies to GET [CURRENT] PERFORMANCE command and if it does, then it just disregards Page2A. Plextor apparently breaks 3rd expectation by returning following at all occasions: GET [CURRENT] PERFORMANCE: Write Performance: 6.0x1385=8310KB/[EMAIL PROTECTED] - 385023] 8.0x1385=11080KB/[EMAIL PROTECTED] - 2295103] It remains to be seen if it's firmware deficiency or intended behaviour. Plextor has been contacted regarding this issue already. Depending on outcome growisofs will be modified or firmware update would be required. *Meanwhile* either use growisofs is pairs, first with -speed=N and then without -speed argument to achieve the desired result or modify growisofs to disregard outcome of the check if speed change was successful (just locate Failed to change write speed in growisofs_mmc.cpp and get rid of exit() following that line). Interestingly, when I tried speed=1, growisofs seems to have tried to burn at double (!) speed, -speed=1 basically means set the lowest possible speed, and not really 1x. As 2.4x *was* listed as lowest possible speed, the fact that it tried to change speed to 3324 is perfectly expected. A.
