If neither you nor the band nor the venue are getting any money for the performance, then technically you can use SE footage as long as you give credit. But if someone is getting paid, then yes, you need to contact [email protected] about purchasing a license for commercial use.Sorry for hijacking an old thread but I can't seem to be able to start a new topic. My question was similar, to be exact it's about using in game footage for use as a music video and using footage to be played in accompaniment with a live band on a projector. This is classed as commercial use and thus requires me to get in touch with the creators of Space Engine, am I correct?