All my roms disappeared

I can not find any of my roms (nes, snes, genesis, mame) anywhere on my ps3 even though they are still taking up space on the hdd. I originally had individual emulators on the ps3 for each system but then I updated MM to a newer version that had a "retroarch" emulator built in it and also upgaded from 3.55 to rogero 4.30v2. Now the system cant locate them anywhere. I went in with a FTP thing and I cant even find the original rom directory. If it was only a little space I wouldnt be concerned but im missing about 40-50gb of space I want back. Its to the point that im thinking of reformatting my hdd but I have read I will lose my cfw if I do. Im on the latest version of MM if that matters

Short Version:

- Had individual emulators for all system on 3.55 and older MM. everything worked fine
- Updated to Rogero 4.30v2 and updated Multimanto with integrated Retroarch
- All 40GB+ of roms no longer show up via MM, Retroarch, or FTP client but are still taking up space on hdd