Some additional info. I got the disk to boot in a virtual machine and got to the desktop, but when trying to install on a real PC laptop, I get that GRUB! message and one of two errors--sometimes I get "Unsupported File System" and other times the disk read error. I'm willing to entertain the possibility that the DVD drive on one of my systems is faulty regarding the latter, but I can't understand why I'm getting the former. Any ideas? I'd really love to get AROS up and running natively on my old laptop. Thanks!