DVDInfo X 3 is a small utility that scans your Mac for DVD drives and displays their RPC (Region Playback Control) status. It supports multiple drives.
A RPC-1 (region free) DVD drive will play movies from any region.
A RPC-2 (region locked by the RPC Phase II scheme) DVD drive's region may be changed 5 times, then it will be locked. Once locked, it can be reset by the manufacturer (or vendor), so you'll have 5 changes left, again. Only 4 vendor resets are allowed, then the drive will be definitely locked. It can only play movies authorized for the region it belongs to.
I've tried several times to download DVD Info X 1.0.2 but it is not possible. I either get the message "server not found.." (on the Mac) and "page cannot be found.." (on the PC0. Any ideas why? Where else can i find it?