Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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Re: PVR hard drive Wester Digital WD1600AVBB fail

November 20th, 2014, 10:17

Hey again,
I hate to re-open this topic but i got more problems with the same hard disk.
Thanks again to michael for repairing it last time, but now i have another issue.
It worked fine until now, pvr reported unknown file type and now i cannot open the program list anymore.
So opened the pvr once more, took out the hard drive and looking at it everything seems fine.
So i hooked it to the pc and this time it seems to identify correctly to the computer. I cannot ofcourse see the files in windows since the file system is unknown.
I can see high crc errors in Disinternals Linux reader, but the contents wont show, i suspect since its not really a Linux file system either..
Anyways, i had time to backup everything important from the hard drive before the new problems arrived. I'm just curious if it could be read using maybe fusion or syphon to extract files and then i could re-format it using the pvr.
I was able to backup the disk using R-studio to my pc.
I tried what fzabkar suggested in the previous posts and edited the partition id's with a hex editor.
Fusion still doesn't recognice the boot sector, though it shows the data in the general section according to each partition id. And it doesnt recognice the files at all...
So fzabkar, or anyone else any suggestions of how i could open the file system?
I'm propably ditching the pvr anyways after this since it makes the hard disk not work properly, just thought if i could extract the programs once more..

Re: PVR hard drive Wester Digital WD1600AVBB fail

November 20th, 2014, 14:25

Hi, i'm sorry that you are having still problems with this PVR.
Can you show us SMART status with HD Tune or HD Sentinel or CristalDisk ?

Re: PVR hard drive Wester Digital WD1600AVBB fail

November 20th, 2014, 19:40

If the file system cannot be mounted, then I would use a hex editor (eg HxD freeware) to view the beginning and end of a previously recovered file. The header information may help to identify the file type. One could then scan the drive with a raw data recovery tool (eg PhotoRec freeware) in search of these signatures.

http://www.cgsecurity.org/wiki/Add_your ... o_PhotoRec

Re: PVR hard drive Wester Digital WD1600AVBB fail

November 21st, 2014, 8:39

michael chiklis wrote:Hi, i'm sorry that you are having still problems with this PVR.
Can you show us SMART status with HD Tune or HD Sentinel or CristalDisk ?

Here is Crystaldiscinfo status: http://i1354.photobucket.com/albums/q69 ... fdefad.jpg
fzabkar wrote:If the file system cannot be mounted, then I would use a hex editor (eg HxD freeware) to view the beginning and end of a previously recovered file. The header information may help to identify the file type. One could then scan the drive with a raw data recovery tool (eg PhotoRec freeware) in search of these signatures.

http://www.cgsecurity.org/wiki/Add_your ... o_PhotoRec

How do i do this?
I have tried to recover using Photorec, but it only is able to extract the .mp3 and screenshots .bmp but not the actual video files..
I remember the video files extracted from the hdd using usb were in format of .ts or something like that? How do i make photorec "understand" this format?

Re: PVR hard drive Wester Digital WD1600AVBB fail

November 21st, 2014, 9:11

"TS" sounds like "MPEG Transport Stream", in which case you will probably find that VLC (Videolan) will play these files.

Could we see the first sector of one of these .ts files?

In HxD you would drag your cursor over the first few lines and then select Edit -> Copy As -> Editor View. Then paste the clipboard contents into your next post (Ctrl-V or Edit -> Paste). Use the Code button in the forum's toolbar to preserve the formatting.

Re: PVR hard drive Wester Digital WD1600AVBB fail

November 21st, 2014, 13:27

Very probably this time it's a logical issue, not physical damage.
I suggest you to follow fzabkar's advices.

Re: PVR hard drive Wester Digital WD1600AVBB fail

November 21st, 2014, 19:28

Yeah, thanks michael thats what i suspected myself..
I found some files i have transferred before using usb, i opened one and it seems to start with plenty of zeros..
I copied so much it includes the few lines that actually seem to have some data.
I dont want to paste it here so i don't flood the topic, so i uploaded it to mega: https://mega.co.nz/#!9c40ALJb!NnAbyGRjmI4Bnm4tHBZbBgmsTKAa3hgLNIxBttt1614
The files don't actually have an extension at all, so i'm not really sure if they are .ts .

Re: PVR hard drive Wester Digital WD1600AVBB fail

November 22nd, 2014, 14:39

I think the files are some sort of mpeg though, since projectx can handle them..

Re: PVR hard drive Wester Digital WD1600AVBB fail

December 2nd, 2014, 9:33

Did anybody get a chance to look at the file? Fzabkar?

Re: PVR hard drive Wester Digital WD1600AVBB fail

December 3rd, 2014, 16:00

Code:
Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F

00000000  01 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00000010  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
........
00001FF0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
00002000  00 00 01 C0 0A 88 84 80 05 21 49 75 9A F1 FF FC  ...À.ˆ„€.!Iušñÿü
00002010  B4 00 82 F9 CC CC BB CC 66 65 65 54 10 01 01 00  ´.‚ùÌÌ»ÌfeeT....
00002020  00 00 00 00 00 00 00 00 00 00 AA AB AA AA 99 04  ..........ª«ªª™.
00002030  4D 39 35 18 71 97 1C 8E 39 24 9A 8B F4 CB 57 B9  M95.q—.Ž9$š‹ôËW


Perhaps MediaInfo could tell you something about the file?

https://mediaarea.net/

PVR hard drive recovery

December 7th, 2014, 8:13

As a returning customer you certainly qualify for a discount :)

Vilpo wrote:I copied so much it includes the few lines that actually seem to have some data.
I dont want to paste it here so i don't flood the topic, so i uploaded it to mega: https://mega.co.nz/#!9c40ALJb!NnAbyGRjmI4Bnm4tHBZbBgmsTKAa3hgLNIxBttt1614
The files don't actually have an extension at all, so i'm not really sure if they are .ts .

It resembles MPEG somehow, but this isn't exactly MPEG according to magic.
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