Working in groups is a good idea. I would say that perhaps CDLC's should be more like a WIKI database. People can edit over time. It is not a formal group. Can we edit CDLC's now? If there is a problem with one , can you go in and edit it or is it locked? If you can edit it, and improve it, then what would be the problem with reposting it as an edited version giving credit to the original editor. Remember that all of these CDLC's are using copyrighted material. It seems rather ironic that people would get bent out of shape over someone editing their work which is based upon a musician's work. This is a teaching tool helping people learn how to play a piece of music. No one is getting any monetary compensation from any of this so if there is a way to streamline the process and collaboratively improve a CDLC, I think it would be a boon to the process. I for one think it would be fun to work on one phase of the development process . For example, I downloaded a CDLC the other day and found that it had some sync problems. If I could just edit it for that problem, fix it, and repost it then that seems like it would be a good idea. What is the problem with that? I just do not understand.