Guys I have news about this problem. Take a little time to read this post because at the final there are some surprising results.
To recapitulate.
S.M.A.R.T. monitoring takes back that the disc have 9073 (dec) uncorrectable sectors. No Pending sectors, no Reallocated like image in first post show.
Well, I have performed the following operations on this disc with amazing final results.
First.
I have run the utility from Samsung, Hutil and it has found just very many errors and it says to me that the disc has some defects.
Second.
I have run HDD Regenerator.
It has found 2214 (dec) bad sectors and it has said me to repair all them. Attention: total sectors scanned (full scan of the disc):
312581000.
Subsequently I have run the utility Hutil from Samsung, and it has found the same identical defects before to run HDD Regenerator. Identical.
Third.
I have executed a quick low level format with Hutil, this especially in order to erase both MBR and FAT to remove the references of the old file system. Therefore I have run Hutil and it still reports identical errors as first scan.
Fourth.
I have performed a full low level format by means of Hutil; I'm aware this operation only writes all zeros on every bit of the disc. however I have tried it.
Fifth.
I have partitioned the drive by means of Partition Magic 8. After that, I run MHDD in order to reallocate all possible sectors, but amazingly, simple surface scan reports the disc is completely OK, with this excellent result:
All sectors are accesibles in <3ms or <10ms or <50ms..
No <150ms, <500ms, >500ms, UNC etc. Nothing of nothing.. Excellent!
But attention: total sectors: found and scanned
312579695.
There are 1305 sectors disappeared.
Well, the first thought that I had, was that the bad sectors have been reallocated after the full low level format, but surprisingly, for me, the situatiuon of the disc is the following:
As You see, there are not reallocated sectors and no pending sectors. I am using this disc from three days and there are NOT errors in the eventviewer. Usually it marks this type as critical errors like "FOUND BAD BLOCK IN HARD DISK DEVICE..." etc. etc. and also chkdsk don't found any error. The disc seems to be in great working condition, but I ask to me and You how to interpret these facts. I hope I exactly have reconstructed that is happened considering that I have worked on this disk in the last six-seven days, when I have been able.
Opinions and comments are very good accepted.
Bye.