There are a multitude of other SMART monitoring and attribute gathering softwares out there.
Chances are Hitachi disks encode the RAW_VALUE field, so a very large value is completely legitimate. You have to understand that SMART attributes are not standardised per ACS/ATA standard -- they can be encoded in any way, and vendors do take advantage of this fact. Some software, such as smartmontools (only works on 2K/XP), know how to decode some of the raw values, but most others do not. Seagate tends to encode their attributes as well, such as their Hardware_ECC_Recovered attribute.
TL;DR -- if you see a very large RAW_VALUE field, chances are it could be encoded in said fashion. In this situation all you can do is look at the adjusted value (often labelled "Current" or "VALUE") and go off of that.
It's important that users know how to read SMART data before worrying about their hard disks.
So many people just look at RAW_VALUE and go "OMG!!!!! IT'S 982348942393849283942893248932498324!@!$!%@!" and think it means something bad. That isn't the case.