Looks like Power Compress (PowerCompress) are changing - I asked them when they were upgrading beyond the v1.3.4 I have currently and they said:
Dear Customer,
For the moment we do have an update, but it is for another product.
Power Compress will soon be merging with LIVE! Compress (brought to you by
AMD). Power Compress™ had some troubles and bugs threw out 20 months and
we brought out LIVE Compress™ and with help of AMD support the software
is now more reliable than ever. The main difficulties we had were the Pocket PC
and eXtender compatibility. They should now be working with LIVE
Compress™. The rest of the remaining features are untouched, it still has
the same interface. Furthermore, we are waiting for our systems to be one with
PowerCompress™ and LIVECompress™. Soon our older clientele will be
automatically updated to LIVECompress™, for the moment we can only credit
and ask for you to sign up for LIVECompress™. But if your account is
older than 3 months we can only ask you to wait for our systems to be embedded
with LIVE! Compress accounts.
Thank you for your comprehension.
Power Compress Team