I've found that a fake version of Windows 2000 Datacenter Server (en_win2000_dcsv_sp4??) is distributed. But remember that Windows 2000 Datacenter Server (W2DFPP_EN / with SP4 ZRMDFPP_EN/Retail) doesn't be exsit. It was available as OEM distrubution. (Not distribute as Retail Package.) Of course W2DOEM_EN / ZRMDOEM_EN is exist. So be careful to download Windows 2000 Datacenter Server Retail. It is not original but modified one or fake.
No, it's not official because it haven't Configure Server application. It have Boot Disks labeled as SP3 Boot Disks and few bugs.