Just installed HFS+ 9.0 and it made my OSX partition unreadable. Luckily I have a backup of my hard drive so no damage done. I first started with HFS 8.0 but that would not install with Windows 7 64 SP1 so I was directed by Paragon to HFS 9.0. It installed but it also made my OSX Partition unreadable. The only solution to getting my osx partition back to a readable state was to recover from an image I have of the hdd. Running everything on a 2010 13.3" Macbook pro with OSX 10.6.6 and Windows 7 Ultimate 64bit with SP1 on a 250gb OCZ Agility SSD.