Vista is known for both slow copy and perceived slow copy issues, especially
in the original edition without any Service Packs [ if you do not have the
Service packs applied do so now

) ]. It's completely fixed in Windows 7.
But if it is not Vista, there could be a number of things going on. The
harddrives might not be running at top speed because they're not set to DMA
(check Device Manager), the cables are shoddy, one or more of them has a
physical problem, your mobo's BIOS isn't up to date and so on.
Saucy
"oc9ine" <> wrote in message
news:eiHIqRj$...
> Hi,
>
> I have Win Vista Ultimate 32bit.
> Intel D945GNT Motherboard.
> Pentium D 3.0
> 1.50 GB of RAM
> 160 GB SATA HD.
>
> A few days ago I upgraded my system to aforementioned specs. I needed to
> copy data from old Seagate 80 GB IDE drive to my new 160 GB SATA drive.
> What was really annoying that when I tried to copy a file from IDE drive
> to SATA drive for example a file of 650 MB started with great copy speed
> but gradually slowed to a crawl and it took a long time for me to transfer
> data.
>
> What could have been the problem...?
>
> Regards,
>
> Oc9ine.