dprvulov
Can I still install and activate my legacy Sonar Professional?
Yes. It's a good idea to do so, because you'll pick up a few plugins and instruments (e.g. Lounge Lizard, TruePianos) that aren't included in CbB. I used CCC just last week to install SPlat on a laptop.
However, once you've installed SONAR there's no need to actually use it because CbB is essentially SONAR Platinum. You'll be gaining several Platinum features that weren't in Professional (e.g. Vocal Sync, PC76, console emulator, Breverb).