Re: how to rescue this backup data (now I verified the iso image is an iso image)

[Zhang Weiwu <zhangweiwu@realss.com>]

在 2010-01-03日的 17:02 +0100，Thomas Schmitt写道：

> If this is an ISO 9660 image then
> 
>   $ dd if=backup.iso bs=2048 skip=16 count=1 | \
>     od -c | less
> 
> should show this output
> 
>   0000000 001   C   D   0   0   1  ...
>   ...

	
Ariel@Jamaica:/tmp> dvd+rw-mediainfo /dev/sr1 | grep -A 3 "#2.:"
READ TRACK INFORMATION[#2]:
 Track State:           partial/complete
 Track Start Address:   1256096*2KB
 Free Blocks:           0*2KB
Ariel@Jamaica:/tmp> expr 1256096 + 16
1256112
Ariel@Jamaica:/tmp> dd if=/dev/sr1 bs=2048 skip=1256112 count=1 | od -c | head -n 1
1+0 records in
1+0 records out
2048 bytes (2.0 kB) copied，1.69675 秒，1.2 kB/秒
0000000 001   C   D   0   0   1 001  \0   L   I   N   U   X            

ISO-image verified.

However problem is not solved. I will explain how it is not solved in a
following separate email to keep the discussion thread clean.