I have approx 500 NES roms in a 7zip file. The 7z file is approx 94MB and the roms are fully playable in FCE Ultra GX (Homebrew Channel running on Virtual Wii on my WiiU). A problem occurs when I try to save state, it says it's unable to do so (I don't have a problem when the rom is out of the 7zip file). I used the LZMA compression method (LZMA2) doesn't work with FCE Ultra GX, but do I need to tweak other settings when creating the 7zip file (like Dictionary Size, etc) ? I'm encountering the same problem in all of Tantric's releases (like Snes9x GX). Is this functionality available for roms in 7zip files?