Date: Tue, 11 Oct 2005 13:34:49 +0400 From: "Andrew P." <infofarmer@gmail.com> To: "mrideout@windserve.com" <mrideout@windserve.com> Cc: freebsd-questions@freebsd.org Subject: Re: Overburned DVD data recovery Message-ID: <cb5206420510110234s47aad0e9pf0f856ac773eeb26@mail.gmail.com> In-Reply-To: <37546.127.0.0.1.1128976021.squirrel@127.0.0.1> References: <37546.127.0.0.1.1128976021.squirrel@127.0.0.1>
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On 10/11/05, mrideout@windserve.com <mrideout@windserve.com> wrote: > Hi, > > I have a cron job that backs up a FreeBSD server's files to DVD+RW media > each evening using growisofs from the dvd+rw-tools port. There are some > files that I need to recover, but the problem is, the last 2 weeks of > backups were a few hundred megabytes too large, and overburned. > > Is there any way to recover data from these overburned DVDs? I tried > mounting them from FreeBSD, Windows and Mac systems without success. I > also tried running "cat /dev/acd0 | gzip > data.iso.gz" in an attempt to > grab the raw bits of the disk, but that only resulted in an input/output > error. > > Restoring a 2-week-old backup is an option, but any ideas on how I might > read data off of these overburned disks would be greatly appreciated. > > Thanks, > > Matt > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.o= rg" > I'd start with trying to dd the DVD to an ordinary file (dd if=3D/dev/dvd-device of=3D/usr/recov.iso bs=3D2048) and then trying to mount that file.
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