File system on the HD of a DVD recorder
in [Storage]
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From: Lars on 18 Sep 2008 17:33 Hi group, I know this is not a bina fide ibm.pc question, but where else to ask? I have this Sony DVD Recorder, RDR-HX710 with a built in hard drive, WD 160 GB. Late one night my fingers where faster than my brain and rather than reformatting a RW DVD I reformatted the HD, and lost all the cool stuff I had recorded. I searched for some unformat command but it had none. So I took out the HD and plugged it in to an external USB-connected box. Windows Diskmanager sees the drive but reports it all as "non-allocated" space. Do you have any idea what kind of file system such a drive may have, and if there is any tool I could use to unformat the thing? Lars Stockholm
From: Rod Speed on 18 Sep 2008 17:54 Lars <Lars(a)fake.com> wrote: > Hi group, Lo groupy. > I know this is not a bina fide ibm.pc question, but where else to ask? > I have this Sony DVD Recorder, RDR-HX710 with a built in hard drive, > WD 160 GB. Late one night my fingers where faster than my brain and > rather than reformatting a RW DVD I reformatted the HD, and lost all > the cool stuff I had recorded. A Jap would at least have the decency to disembowel itself. > I searched for some unformat command but it had none. So I took > out the HD and plugged it in to an external USB-connected box. > Windows Diskmanager sees the drive but reports it all as "non-allocated" space. > Do you have any idea what kind of file system such a drive may have, See what a Ubuntu Live CD makes of it. > and if there is any tool I could use to unformat the thing? Depends on what format it is.
From: Eric Gisin on 19 Sep 2008 18:39 It might be FAT32 or UDF 2.x. Get dskprobe or another disk editor. Compare a FAT boot sector with the first 64 sectors of the DVR disk. "Lars" <Lars(a)fake.com> wrote in message news:v4h5d41jvulomkcrdt0in6e6b2c8kvp1fg(a)4ax.com... > > I have this Sony DVD Recorder, RDR-HX710 with a built in hard drive, > WD 160 GB. Late one night my fingers where faster than my brain and > rather than reformatting a RW DVD I reformatted the HD, and lost all > the cool stuff I had recorded. > > I searched for some unformat command but it had none. So I took out > the HD and plugged it in to an external USB-connected box. > > Windows Diskmanager sees the drive but reports it all as > "non-allocated" space. > > Do you have any idea what kind of file system such a drive may have, > and if there is any tool I could use to unformat the thing? >
From: Franc Zabkar on 20 Sep 2008 13:00 On Thu, 18 Sep 2008 23:33:08 +0200, Lars <Lars(a)fake.com> put finger to keyboard and composed: >Hi group, > >I know this is not a bina fide ibm.pc question, but where else to ask? > >I have this Sony DVD Recorder, RDR-HX710 with a built in hard drive, >WD 160 GB. Late one night my fingers where faster than my brain and >rather than reformatting a RW DVD I reformatted the HD, and lost all >the cool stuff I had recorded. > >I searched for some unformat command but it had none. So I took out >the HD and plugged it in to an external USB-connected box. > >Windows Diskmanager sees the drive but reports it all as >"non-allocated" space. > >Do you have any idea what kind of file system such a drive may have, >and if there is any tool I could use to unformat the thing? > >Lars >Stockholm I don't know about your Sony DVDR, but this one has a Cirrus Logic chipset: http://jeroent.com/salora/?cat=4 http://jeroent.com/salora/?cat=6 The file system is proprietary. I suspect yours is, too. In the CL case, the file system begins at the topmost LBA and grows backwards to LBA 0. - Franc Zabkar -- Please remove one 'i' from my address when replying by email.
From: Lars on 5 Oct 2008 16:42
Previously, on Usenet "Rod Speed" <rod.speed.aaa(a)gmail.com> wrote: >> I have this Sony DVD Recorder, RDR-HX710 with a built in hard drive, >> WD 160 GB. Late one night my fingers where faster than my brain and >> rather than reformatting a RW DVD I reformatted the HD, and lost all >> the cool stuff I had recorded. > >> Windows Diskmanager sees the drive but reports it all as "non-allocated" space. > >> Do you have any idea what kind of file system such a drive may have, > >See what a Ubuntu Live CD makes of it. At long last I have had time to dig into this thing again. I used a Knoppix Live CD but that did not get me any further. It said something similar to what Windows disk manager says, non allocated. Here is a screen dump from PowerQuests partition Table Editor; http://web.telia.com/~u84408784/Avis/PartitionTable_WD.png It says Type is A3, does that tell you anything? Here is a digital photo of the contents of sector 1 http://web.telia.com/~u84408784/Avis/Sector_1.png I have not seen Svend around here in a while. This might be something for him ... Lars Stockholm |