Nero wont write anything

Ive had to use Pinnicle instant write to save the vobs or nrgs to dvd as Nero refused to write anything. With all the problems ive already mentioned about Nero it keeps saying calibration error everytime i try and write a movie in HD-Burn which is supposed to doube the capacity of cds. To say ive lost faith in Nero is an understatement. I find the software completely buggy as other copying programs write the vobs and nrgs and mpegs to problem to disk. I thought somebody from Nero could of helped me as i posted the log data but no such luck. I have two recorders one that producers jerky results under Nero and one that does not even work under Nero. I've been to hell and back trying to get them to work but Nero is still acting dumb.

Binx