So, right now CinGG tracks your work and can create two backup files (backup.xml and backup.prev). It works [hopefully] but feels a bit TOO dangerous in the event of crash, when confused user may save backup instead of loading it. Recently I crashed Audacity a bit :} It surely shows up Session recovery dialog, where you can see backups with time-date added to their names, and choose one to load. Do you think similar system will work for CinGG? At very minimum I think I can try to write 'we_are_running.lock' file on app startup, and only delete it on clean shutdown. So, there will be way to act in case we detect crash. After we detect crash - probably right now Warning can be displayed, instructing user to seek LOADING backups. If I can made this sytem work reliably - I hope multi-backup solution also will be within reach.