After using a few models I can't see much difference among them. All perform well enough to play music and we use netbooks for demos all the time.
Back to toshiba and acer. This is the Ford or Chevy, Honda or Toyota question. Until you compare specific models there is nothing to base a decision of one over the other.
I was going to buy a netbook but figured out it wouldn't have the performance I am looking for with the amount of music I wanted to put on it. So I have decided to go with a smaller laptop.
I have seen numberous reports on both the toshiba and acer is one really better than the other?