On 7/20/2010 9:31 AM, Tim wrote: > On Mon, 2010-07-19 at 23:29 -0700, JD wrote: >> What I also do to reduce the likelihood of a bad burn, is I reduce >> the burn speed to 2x. Burning at 52X (cdr) or 22X (dvdr) will have >> a higher likelihood of a bad burn. Some will say this is bunk. I say >> I have proven it in practice. > > Seconded! A slower burn is more reliable. Though I've found medium > speeds good enough, I don't have the patience for the slowest speeds. > And some drives/discs exclude them from the supported burning speed > list, anyway. > My thanks for your replies, however as I thought I indicated, my problem does not seem to be in the burn process but in the ISO that I created from a directory on my HD. The ISO was not downloaded. I had seen similar problems before so I had started loop mounting my ISO's after creating them and doing a diff -r between the mounted ISO and the origin directory. If there was an error, I would recreate the ISO and test it again before burning to DVD+R. This time, the diff between the mounted ISO and the origin dir passed w/o error, so I burned it and then did a diff between the newly burned DVD and the origin dir. That diff gave an error, so I burned a second DVD from that ISO, ran diff, and got exactly the same error on this DVD as the first DVD I'd burned. I remounted the ISO (mount -o loop ...) and again ran diff -r against the origin dir to double check and again saw no error. This is what puzzles me. Nonetheless, I recreated the ISO from the origin dir, mounted and tested it, found no error and burned a DVD from the new ISO. This time a diff -r between the new DVD and the origin dir passed. The puzzlement comes from the apparent fact that the first ISO was flawed in some way that a diff (on the loop mounted ISO) didn't pick up on. Still, it yielded exactly the same error in two burns. Regards, D Wyatt -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
