OK until it breaks - then replaced with refurbished unit

I bought my Buffalo in November 2010 and reasonably happy with it. Shortly before the warranty period ended the drive failed. I returned it to Buffalo who sent a replacement. The replacement was a refurbished drive and during the process of copying my files onto it this replacement exhibited an error. At this point the warranty period had expired and Buffalo would do nothing further for me. Really you should expect to get around 5 years out of a drive before it might fail. Do a search of the internet for other unhappy Buffalo customers before you consider purchasing this.