I'm recording songs on the same project i make my beats on and I'm starting to have 50 tracks or more. Every time I start to play the song, the HD meter, underneath the CPU meter, flies into the red and then immediately sinks down to nothing. I was wondering what this HD meter is? What does it mean? Also, for the first time since i got my iMac, the CPU meter is starting to raise. I have only 2 GHz processor speed and 2 GB of memory. I was wondering how many tracks do you think I will be able to make in a project before my computer is too slow? thank you very much for the help, as this has been on my mind for a while now.