I've been seeing a lot of YouTube ads recently for Scan Score. I've tried d/l'ing their demo but haven't had any luck running it. On startup it asks for a provided license key, and Scan Score didn't provide one, in an email or anything else I can see. I even contacted them about this, but still no response.

For the past few years I've been using Neuratron Photoscore and NotateMe. It works okay. Even with a clear pdf it will generate transcription errors, so I often spend a good deal of time correcting them in the score itself. But it works, which is why I keep using it. MuseScore is supposed to have this feature, but from what I understand, even though it supposedly has it, it hasn't been fully addressed yet. There's another product out there called SmartScore X, which has a slick interface, but I can't get it to work at all. It reads in the files just fine, but then generates totally unusable garbage. Maybe I have something set wrong, but I've looked and I don't know what it might be.