The day before Cakewalk folded, I purchased several Groove 3 videos, including a few more on Sonar. I am moving on to another DAW (Cubase), so the Sonar videos were wasted money to me.
On a whim, I emailed their customer service, and explained what had happened, and asked if I could "swap" the Sonar videos for something else.
They responded almost immediately to me, said they heard about Cakewalk, and expressed their condolences. Offered to swap any of the recently purchased Sonar videos for me. They did so as soon as I requested something else.
Really cool of Groove 3 to do that.