If you’ve recently upgraded to 10.10 “Maverick Meerkat”, you will notice that when you double-click an .iso disc image file, it will want to create an image checksum (for data verification) before it burns the disc. For most of us, this is annoying, as it needlessly adds time to the burning process.
What’s worse is that once the image has been burned to disc, it will want to do it all over again, even though it apparently does not even compare the first checksum with the final one.
If you’ve tried the Preferences button before burning the image only to find nothing useful, the answer can be found by opening the main program window (Applications > Sound & Video > Brasero Disc Burner), and going to Edit > Plugins.
You will see 2 plugins related to checksum creation/verification: File Checksum “Enables Brasero to check the integrity of files“, while Image Checksum “Enables Brasero to perform integrity checks on discs after they have been burnt. Also enables the writing of a small file which holds the MD5 sum of all the files on the disc“.
Now, in my situation the Image Checksum doesn’t seem to do anything but waste time. In theory, having it create a checksum file and sticking it on the disc for later verification seems a great idea, but I’m personally wary of that as it could render some bootable discs useless. Luckily, from what I have seen, it does nothing of the sort, and it seems no checksum file is created anywhere, meaning this plugin is really just wasting your time.
But simply uncheck the Image Checksum plugin to disable it, and your burn process will go back to how it was.
Extra Notes:
♣ You can also uncheck the File Checksum plugin, since it is much simpler verifying data discs via the terminal, but this is not vital.
♣ If you actually find this plugin useful, you can choose the SHA1 or SHA256 hashing algorithms instead of the default MD5, simply by clicking Configure.
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Did this information make your day? Did it rescue you from hours of headache? Then please consider making a donation via PayPal, to buy me a donut, beer, or some fish’n’chips for my time and effort! Many thanks!
I’ve found that the “create image checksum” also makes my mp3 files unreadable in a car mp3 cd deck! thanks for the info, though now it’s a bit late now that i wasted my cdr’s already. Now I’m going to do what you said and hope that this solves the problem.
Thanks for the tip. I hadn’t burned a disc ever since the 10.10 install until tonight. I started the burn and went to the store thinking it would be finished when I got back. It wasn’t. I was like, “what the crap?” After finding your fix via Google, I IMMEDIATELY unchecked the plugins after the DVD finally finished.
Also, I’ve been running Ubuntu ever since 8.04 and I’ve yet to see Brasero successfully eject a disc on ANY computer I’ve installed it on – even with a brand, spanking new PC! You’d think they’d have fixed that by now.
Anyway… kudos!
The same thing happened to me but im running ubuntu 12.04, it keeps getting worse every version.
But you could rectify it with this guide, yes? This first seemed to pop up for most of us after upgrading to 10.10, so I’m guessing since then it has been a default setting of Brasero. At least it’s easy enough to fix (so please let me know if you didn’t have any luck). PS: While obviously some of the major changes in Ubuntu in the last couple of years have caused frustration for many, with things like this, it’s actually the software developer’s fault, not Canonical (ie: it’s a Brasero thing, not Ubuntu).
Thanks! Your post is really usefull. I don’t need waiting so long after burn a DVD anymore..
Thanks! I was wondering why my cd was taking forever! This fixed it :)
The problem also exists in 11.10 but i solved by installing installing through the terminal the package CDRao, which fixes this annoying bug:
sudo apt-get install cdrdao
Thanks from Italy :P
Thanks a ton!! Saves me a lot of time and head-ache.
GuruM
thanks from SL !
thanks a ton ….
Why is Ubuntu going *worse* every new version?
OK, I assume you’re having a general moan rather than blaming Ubuntu for this checksum issue, hehe. Then again, I’ve seen changes to some programs being blamed on the Ubuntu team, so for some apps and the OS are one and the same thing. As for Ubuntu’s evolution, yes it hasn’t been to everyone’s liking, but I’d have to venture the changes have been less radical than in Mac OS X “Lion” and the upcoming Windows 8. Also pays to keep in mind that in Ubuntu, you can do pretty much what you want, so while people whinged about Unity when it first came out, I just replaced it with Gnome 3 “Classic” and went about my business (it was as easy as typing one line in a terminal and choosing Classic at login). So if you can’t stand Unity, do that too, or even try other desktop environments like Cinnamon, which is basically like Classic.
thanks for this info! I’m running 12.04 and find that I like it better than any previous version of Ubuntu. There were some annoyances, but a quick Google search on how to tweak things fixed all that.
After I disabled the checksums, brasero started ejecting the CD/DVD tray on it’s own!
Not sure what is happening there – maybe check the settings to see if something is causing it?
Not a problem. It started ejecting the CD/DVDs when it was finished. Whereas before I would have to manually eject them.
Oh, I thought that was a standard setting – perhaps the sum checking disabled that. Anyway, that should be a setting you can disable if you really want to, but I’m guessing you don’t mind the auto-eject when burning is done. Cheers.
You changed my experience with brasero. Thanks. The best things in life are for free, just like life itself. .. Simbarashe musharu, simmtechnology@gmail.com
This is a clear case of the cure being worse than the disease. I have thrown away more mis-burned DVDs than I care to name all for the sake of a useless checksum. Grrr.
Thank You soooo much! It was really annoying and useless feature of Brasero
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