The HDD format issue may be regrettable but not necessarily sinister. If the box is using Linux as the OS, it makes sense to format the HDD in a Linux format. It doesn't make sense to format the HDD in a Microsoft format just so it can be read by Windows. Also, the format of the disk may not be encrypted but rather intertwined
with internal storage to make a single volume out of the two, the same way TiVo handles external storage (also Linux OS) -- i.e. you can't pull a disk out of a RAID 0 array and read the files off of it by plugging it into another PC. So the designers may be more concerned with implementing a file system that provides for the greatest stability in use and not concerned with making the HDD detachable for plugging into a PC.
That being said it would be nice for some other mechanism to exist for recording transfer -- a built-in ftp server, SAMBA shares or some other way to access the recordings over the network, the way TiVo did it. Or the ability to plug a second USB drive in with PC formatting and have the DVR transfer the recordings over to this drive. At this point we don't know that either of those two mechanisms do not exist -- but I wouldn't count on it. It is like jjeff posted:
either you get something very cheap(iView) that has severe limitations and bugs/quirks, something that just works but is expensive(Tivo) or something thats in between, not cheap but also has limitations
The CM-7500 will be one of those boxes in the middle. The question will be how it stacks up against the other middle tier boxes. If it keeps it's similarity to the DTV Pal/CM-7000 it will be on top -- and I think that is more or less what most people were hoping for.