[Bug-ddrescue] ddrescue overwrote primary windows partition

[rinku24]

Hi Guys, 
  I need your help. My external harddisk got corrupted when I connected with
Mac and accidently I selected yes for timemachine backup. So I googled it
and found that ddrescue could recover the data.

So I booted my windows machine with Knopix live CD and connected my external
hard drive. Than I ran a command
>ddrescue /dev/sda1 /dev/hda1 (screwed up. it supposed to be "ddrescue
/dev/sda1 /dev/hda1/recover.img where recover.img is file where data will be
recovered).
HERE: /dev/sda1 is external hard drive
          /dev/hda1 is windows hard drive

After ddrescue recovered 2GB of data, I realized that it is overwritting my
windows primary partition so I stopped it. But it was too late.

Now Again I ran ddrescue to recover data from my windows partition and
copied to another external hard drive

>sudo ddrescue /dev/hda1 /dev/sda1/recover.img
Which recovered almost 32GB of data.

Again I googled it and try to run fsck and mount but fails.
e.g
fsck -y /dev/sda1/recover.img
fsck  -oloop /dev/sda1/recover.img
fsck -t ntfs-3g /dev/sda1/recorver.img

mount -t ntfs-3g /dev/sda1/recover.img /mnt/recovereddata
mount -tauto /dev/sda1/recover.img /mnt/recovereddata
mount -f /dev/sda1/recover.img /mnt/recoverdata

Than I decided to run testdisk again. When I ran test disk, it showed me two
partition

FAT32   29GB
HFS   2GB 
Above information seem to be correct as total data in my windows disk were
32GB which ddrescue recovered and I overwrote around 2GB.

When I selected FAT32 and list files (option P), it doesn't show any data. 
When I selected HFS, I don't get option P to list files

Again I selected FAT32 and selected option "Search" which is running now and 
it displays following info.

Disk /dev/sda1/recover.img - 34 GB / 32 GB - CHS 4179 255 63
Analyse cylinder 448/4178: 10%

FAT32    0  0  1 3915 253 63   62910477  [NO NAME]
Warning Incorrect number of heads/cylinder 16 (FAT) != 255 (HD)
FAT32    0  1  1 11747  253 63  188731494 [???????????]
Warning Incorrect number of heads/cylinder 16 (FAT) != 255 (HD)
FAT32    0  1  7 11747  254   6  188731494   [???????????]
HFS       343  147 9  345  251  54    38728 [F]
HFS      341  42  30   345  251 54    38728 [F]
HFS+    357  108 15  991628468  163  44 471905846
HFS+     386  62  31  2190126255 115 38    0


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