On 10/27/21 4:54 PM, Ed Greshko wrote:
On 28/10/2021 00:09, home user wrote:If the problem were the drive (or dust), then wouldn't the April disc have the same problems, and wouldn't the October disc not work in Disks?Not necessarily. Remember there are multiple lasers in the drive. If the one responsible for writing is getting weak or was impacted by dust at the time it may cause a poorly written disc.
"Disks" (see attachment) is properly handling the October 13 disc, so it's highly unlikely that the problem is the burner/drive or the disc itself. The behavior I've reported is most likely in "Files" and "Caja", or whatever is under their hood. 1. Does Fedora have a way of scanning the disc for hard or burning defects as "SMART" can do for the hard drive? 2. Is there something I need to do (configuration? customization?) to "Files" and "Caja", or is the problem something I should submit a bug on? This would have started in F-33. 3. Did something change in F-33 that would have changed what/how data is written to the disc? The October 13 disc was burned using K3b running in F33. This is the first time I've encountered this problem. Is a bug needed? .... or is some customization/configuration change needed?
Also, if I'm not mistaken, the disc you're using is write once media. So, you could have a media issue.
The disk is write-once. But if the problem were the media, "Disks" probably would not have handled the disc successfully.
I stopped using DVD's and CD's a long time ago. I only use it if I have to boot a live DVD since my motherboard doesn't support booting from USB. USB drives are quite inexpensive and more reliable than discs with the added advantage ofhaving higher capacity. Why not switch?Someday, but not yet.FWIW, I don't even use those. I do daily user backups to a NAS using rsync. Still a USB thumb drive is much betterand more reliable than optical storage.
Actually, my weekly incremental back-ups (done just before doing my weekly patches) are done to USB thumb drives. This has been true for a few years now.
Switching the much bigger pre-upgrade back-up does not solve the existing problem. But it's a good idea for the future, after I use up the MDISCs I already have (they're not cheap!).
Bill.
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