XLR8yourmac reports a problem which might affect recently released 1.5 TB Seagate HD. It seems that micro power cuts have been identified on such HDs when playing audio or video tracks. It happens with HD installed internally in Mac Pro or in an external enclosure. More intriguingly, it does not affect all Mac Pro models.
While waiting for a fix, it seems that inactivating journalizing might be a solution. A future firmware update should fix this bug which might reduce the HD lifetime.
[translation by Linathael]