Nero 7 and 8 with Blu-ray/HD DVD Video Plug-in doesn't support BD-Live. Also Nero ShowTime uses 50% more CPU than PowerDVD. One movie I've tested, Nero 8 (Showtime) uses 35-45% of my C2Q while PowerDVD 9 20%-25%.
I haven't tried Nero 9 yet, but if you want to rip and shrink Blu-ray, and you already own AnyDVD HD, these freeware tools are available and they are great for processing Blu-ray:
- BD Rebuilder (like DVDShrink but for Blu-ray),
PS: You can rip blu-ray to ISO or Files with AnyDVD HD ripper, or even ImgBurn while AnyDVD HD enabled.