[Vol-users] Decompressing Windows 8 hiberfil.sys files

The "imagecopy" plugin in Volatility 2.4 does not decompress hiberfil.sys files from Windows 8 machines, at least in the tests that I have tried. In most cases, I'm getting identical files out, which means that the hiberfil.sys wasn't translated into a native physical address space, which suggests it's not supported? I have also tried using the Moonsols Windows Memory Toolkit which claims to support Windows 8, but that software seems to fail as well. Has anybody had any luck with uncompressing a Windows 8 hiberfil.sys file? Is there any other tool I can use to accomplish this? TIA