I purchased and downloaded this software Pinnacle Studio V12.1 Ultimate), which would not install. I spent hours on the phone with tech support, to no avail. Finally, I purchased the DVD disk of the software, which was shipped, and installed properly. Today, Digitalriver sent me an e-mail, advising me that the download was defective, and instructing me to re-download the original purchase. Since by now I had received the DVD disk that I purchased, I had no need to re-download the original software. I requested the Digitalriver refund the original download price, and they refused. So, I have paid for the software twice.