Windows-You'll need 32 bit Win XP/7 OS + Firewire Tape Subunit Drivers. [No Win 64 bit will not work, dont bother asking.]
The Win 7 Firewire stack needs to be downgraded to the XP stack as I recall.
The ExDues driver package should do the trick.
OSX-Download and install the Apple FirewireSDK 26.
Windows-Install CapDVHS(free)/TSReader($$). Fire up whichever program you pick.
OSX-Fire up AVCVideoCap (Part of the SDK).
Win/OSX-Start capping to your hearts content and enjoy the bitstream goodness.
If your recordings are flagged anything other than copy freely, you will not be anle to transfer them because they will be encrypted, and requires a security handshake between devices for proper playback, and in which said security handshake will not occur because no computers implements the encryption protocol (by design of the content owners).