Recovering data from NTFS disk

[KS <lists04@fastmail.fm>]

Hi all,

A friend of mine gave me his hard disk to try to rescue data from it. It
is a 500GB SATA drive which was in an USB enclosure. His machine
(Windows XP) is unable to detect it when the enclosure is connected.

I connected it in my machine (internal SATA) and just did a ddrescue of
the disk to a 1.5TB hard disk using a Sysrescue CD. The process tells me
that there were 37 errors totalling 151kB.

The ISO image generated is about 466GB. However, when I mount the image
using
mount -o loop -t iso9660 /path/to/image.iso /path/to/mntpt

it shows that the mntpt is just 121MB.
When I do a listing of the mntpt directory I get:

root@sysresccd /root % ddrescue -v /dev/sdb1 /mnt/windows/rescueData.iso
/mnt/windows/rescueLog.txt


About to copy 500107 MBytes from /dev/sdb1 to /mnt/windows/rescueData.iso
    Starting positions: infile = 0 B,  outfile = 0 B
    Copy block size: 128 hard blocks
Hard block size: 512  bytes
Max_retries: 0
Direct: no    Sparse: no    Split: yes    Truncate: no

Press Ctrl-C to interrupt
Initial status (read from logfile)
rescued:   471251 MB,  errsize:   3098 kB,  errors:      35
Current status
rescued:   500107 MB,  errsize:    151 kB,  current rate:        0 B/s
   ipos:   210521 MB,   errors:      37,    average rate:     679 kB/s
   opos:   210521 MB,     time from last successful read:     6.7 m
Finished
root@sysresccd /root % man mount
root@sysresccd /root % mkdir /mnt/windows/rescueDataDump
root@sysresccd /root % ls /mnt
backup  cdrom  custom  floppy  gentoo  livecd  memory  windows
root@sysresccd /root % mount -o loop -t iso9660
/mnt/windows/rescueData.iso /mnt/cdrom
root@sysresccd /root % ls /mnt/cdrom
〰〹  䝎䑒噌慮?湩㬱
root@sysresccd /root % du -sch /mnt/cdrom
13K	/mnt/cdrom
13K	total
root@sysresccd /root % df -h
Filesystem            Size  Used Avail Use% Mounted on
tmpfs                 491M   25M  467M   6% /
/dev/sr0              121M  121M     0 100% /mnt/cdrom
/dev/loop0            194M  194M     0 100% /mnt/livecd
tmpfs                 491M   25M  467M   6% /mnt/memory
udev                   10M  164K  9.9M   2% /dev
tmpfs                 491M   13M  478M   3% /lib/firmware
/dev/sda1             1.4T  466G  932G  34% /mnt/windows
/mnt/windows/rescueData.iso
                      121M  121M     0 100% /mnt/cdrom

Any advice on how to proceed from here? Or can someone suggest a better
method?

Thanks
.KS.