Nero (or NEC 1100) not working

[khafan]

This also happend to me sometimes ago, I've connected my writer and a harddisk to the same IDE channel and when I burnt a disk with nero from that harddisk, suddenly it stop working and when I moved the harddisk to another IDE channel everything worked fine.
so I guess you connected your harddisk and writer to the same IDE and the DVDROM to other IDE channel, so your on the fly burning works fine but image burning gives you coaster, specially if you have a 5400rpm HDD.