> On filesystem level I made all rescue trials. My problem is, that only the
> file is still available. I tried reconstructing it with "myisamchk -r -o
> table_name.MYD", but as I said without the wanted result.
MYD is your data, MYI is your indexes (Indexes are easy to rebuild, you
should not worry about that).
If myisamchk can't read the MYD, then I don't know what else there is. My
guess would be that the data file is damage beyond repair :-(
If you have a complete and working set of binary logs (incase you used
replication which I doubt), you should also be able to get your data back
out of that... But otherwise, I'd say you're out of luck.