In regards to the RecordNow tute
 

Is it really necessary to select record and verify?

I followed the instructions exactly and successfully copied GT3, but it took a long time.

no its not entirely necessary

you can just select record

the verify performs a further check of the dvd-r againt the original *.gi image

Would it work if I simply use Nero to copy the ps2 game?

Yes, you can use Nero but it can have some problems with some games.

If you have got RecordNow Max and it is working I advise you to continue using that :)