Which is better or 6.6.01

Which is better nero burning rom or Is there such an improvement between the two or are there to many bugs in 6.6.01

i am about ready to throw in the towel on - i cant burn direct to disc anymore- i have to thru image recorder in NV3 and then burn the image. another bug i am trying to figure out is that only 2 chapters work out of 3 - i can’t get a third chapter! the third menu button, no matter what i put under it, never plays. i was really stupid and upgraded knowing i had a deadline. but i have never had a problem with nero updates before and things were working well. i dont think i have saved the old downloads - it was months ago - and doing a restore will break other things i have going on. i just dont know at this point - hoping on wisdom from this forum…