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[Bug-xorriso] Follow-Up on Burning Problems Debian Testing

From: Jape Person
Subject: [Bug-xorriso] Follow-Up on Burning Problems Debian Testing
Date: Mon, 24 Aug 2015 15:18:24 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.7.0

Hi, Thomas.

I'm sending this information as per our recent conversation on the debian-user list.

I'm happy to say that converting my tar.gz data archives to .iso format and then using xorriso to burn those to DVD+RW were successful this past weekend.

I burn two such data sets (approximately 4 gigabytes each) every weekend. The first one this time succeeded without error. Unfortunately I didn't think to record its output to send to you.

The second dataset failed the first time with the following output:

address@hidden:~$ xorriso -as cdrecord -v dev=/dev/sr0 blank=as_needed 20150822chip.iso
xorriso 1.3.2 : RockRidge filesystem manipulator, libburnia project.

Drive current: -outdev '/dev/sr0'
Media current: DVD+RW
Media status : is blank
Media summary: 0 sessions, 0 data blocks, 0 data, 4483m free
xorriso : NOTE : -blank as_needed: no need for action detected
Beginning to write data track.
xorriso : UPDATE : Formatting. Working since 0 seconds
xorriso : UPDATE :  512 of 3665 MB written (fifo 97%) [buf  94%]   2.4x.
xorriso : UPDATE :  513 of 3665 MB written (fifo 99%) [buf  94%]   1.0x.
xorriso : UPDATE :  513 of 3665 MB written (fifo 99%) [buf  94%]   0.0x.
xorriso : UPDATE :  517 of 3665 MB written (fifo 94%) [buf  94%]   2.8x.
xorriso : UPDATE :  522 of 3665 MB written (fifo 99%) [buf  94%]   4.0x.
libburn : FATAL : SCSI error on write(268416,16): [3 0C 00] Medium error. Write error. xorriso : FATAL : -abort_on 'FAILURE' encountered 'FATAL' during image writing
xorriso : NOTE : libburn has now been urged to cancel its operation
xorriso : UPDATE : Closing track/session. Working since 196 seconds
xorriso : FAILURE : libburn indicates failure with writing.
xorriso : NOTE : Gave up -outdev ''
xorriso : FAILURE : -as cdrecord: Job could not be performed properly.
xorriso : aborting : -abort_on 'FAILURE' encountered 'FATAL'

At the position of the ellipsis I've omitted the majority of the output but noted that the burn ran at 2.4x all the way through until it failed. I showed just the last few lines of the burn run stdout before the summary.

Immediately after this, I used the same disc and same .iso image using the same xorriso command. The burn succeeded this time with a summary of:

Writing to '/dev/sr0' completed successfully.

xorriso : NOTE : Re-assessing -outdev '/dev/sr0'
Drive current: -outdev '/dev/sr0'
Media current: DVD+RW
Media status : is written , is appendable
Media summary: 1 session, 1876700 data blocks, 3665m data,  817m free

However, I noticed that the burn speed was 4.0x all the way through this time, and on the first successful data burn to another DVD+RW disc. The burn speed throughout the unsuccessful try was 2.4x.

I'm sorry that I didn't get more information for you. I'm hard-pressed to do anything but take care of my medical issues right now. But I may get a breather from that in a couple of weeks. I can also provide info on my system specs if you need that.

At that time, if I'm able, I would be glad to try various different disc types. I have DVD+Rdl, DVD+RW, DVD-RW, and CD-R on hand. I'd also be glad to try other command line utilities and/or xfburn to see if they behave differently.

Thr three tries and two successes this weekend was HUGELY better than any previous try at burning in recent months, so xorriso is a keeper in my book.

For my own convenience I could consider just burning the data archives directly, or I could try to figure out how to produce the .iso images without doing a two-step process. Not sure yet if xorriso will do that, but I could install genisoimage and just create the .iso directly from the data directories.

Many thanks for your interest and help -- and also for the very effective xorriso package, which I only learned about recently.

Best regards,

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