Seagate HD Problem: An Update

Seagate released a webpage dedicated to the current issues affecting some of its HD: http://seagate.custkb.com/seagate/crm/selfservice/search.jsp?DocId=207931&Hilite=
The list of potentially affected 3.5" HD:
Barracuda 7200.11

ST31000340AS

ST31000640AS

ST3750330AS

ST3750630AS

ST3640330AS

ST3640630AS

ST3500320AS

ST3500620AS

ST3500820AS

ST31500341AS

ST31000333AS

ST3640323AS

ST3640623AS

ST3320613AS

ST3320813AS

ST3160813AS
Barracuda ES.2 SATA

ST31000340NS

ST3750330NS

ST3500320NS

ST3250310NS
DiamondMax 22

STM31000340AS

STM31000640AS

STM3750330AS

STM3750630AS

STM3500320AS

STM3500620AS

STM3500820AS

STM31000334AS

STM3320614AS

STM3160813AS
All HDs have been manufactured on December 2008. Seagate offers an online detector system allowing you to identify if your HD is potentially affected or not. You will need to enter the serial number at the following address: https://apps1.seagate.com/rms_af_srl_chk
If your HD is internally plugged, you will find information related to the serial number in system information under SATA tab. If it is plugged via an external enclosure, you might get the information too from the system (depending on the bridge), or you will have to disassemble it (it voids the warranty, so it you installed the HD yourself, no problem, if you purchased the external HD as a complete unit, you better contact your reseller).
If your HD is detected as faulty, Seagate will ask you to contact its customer support service, as no firmware update has been made public so far.