To run more than one video or audio track at once.
Funny cause its available on the pc version.
I haven't used the mac side of my mac book pro in a long time, and now I remember why hehe.
I had to redo the windows on my mac and found out after reformating the partition that my internal dvd didn't work anymore.
Basically after 4 days of intense research not even a bootable usb works after three days of using my mac os I remember why I stopped using it so long ago. This will be my last mac, done with Iphones too. I used to love them both but they have gone way downhill lol.
-------------
For those that want to run more than one on mac you can run MC20 and MC21 at the same time.
-------------
I did some homework and found this:
http://www.cnet.com/news/how-to-open-multiple-instances-of-an-application-in-os-x/Also for those that understand the Terminal utility for OSX:
While this is how Apple designed OS X to behave, it is actually an appended feature to the Unix-like underpinnings of the OS, where the system supports launching multiple instances of background services and other tasks via the command line. Therefore, if you would like to open a second or third instance of a specific program, you'll need to do so via the Terminal command line using the following:
open -n -a "APPLICATION NAME"
So basically:
Open the Terminal app found in the utilities folder, then type the following:
open -n -a "Media Center 21"
That will open a second, third, etc...
hope thta helps some people that wanted to do the same thing.
--------------
It's easily done in the mac code would be nice to see this feature added in futre updates or versions of the OSX MC.