I'm having the exact same problem with 220.127.116.11, using vista 64, when I had 32 installed I don't remember having this problem. based upon the thread you think it might be hard drive related? or maybe Sata driver related.
One side note.
It does APPEAR to lock up, but if you actually let it go, it will finish successfully, once memory gets to about 98% you can't do anything except let it finish or reboot (the hard way).
I am going to be building a new machine in the next month or so with these specs in mind:
680i NF mb (probably the evga)
core 2 duo processor (haven't made up my mind on that but probably e6400
4 gb of ram
2 x 500mb sata 2 drives striped to 1 TB logical volume
And not use the SIL sata controller, as they seem to be really really quirky. If I have to use a 3rd party card I will.
I played with virtual memory settings, DVDrom bios updates, nero settings (none of which I could find that would modify memory usage.
I checked event viewer but didn't find anything of note.
I'm doing this all as an administrator with EAC disabled, in a domain environment (however there is no set group policy that would block anything.), the domain is present just for learning purposes (just got a server admin job, so spending my time at home at night learning.....)
Hopefully the new pc will alleviate the problems if its a hardware related problem, if not, hopefully nero will have a pending update.......