mysql folder displayed as file

I mount my old system disk to a new and I cant browse /old/var/lib/mysql
The folder is displayed as file with creation date 1970-01-01 and 4Gib
I have no rights to copy or move it. User and group are 4294967295

is this a corrupt file system or something else? Is it possible to recover?

 

What's the output of

Code:

ls -la /old/var/lib/mysql/

?

 

Code:

ls: cannot access /old/var/lib/mysql/: Not a directory

in ls -la /old/var/lib/ there is a mysql file:

Code:

?rwsrwsrwt 65535 4294967295 4294967295 4294967295 1970-01-01 01:59 mysql
drwxr-xr-x     5 root       root             4096 2006-12-16 03:31 nfs
drwxr-xr-x     2 ntp        ntp              4096 2009-08-10 23:49 ntp

 

That's strange - I've never seen anything like this before...