Click to visit DMAT YES-YES Copyright List.
Click to visit DMAT NO-NO's Copyright List.
While there they have an up-dated NO NO list that should
help you to learn the copyright NO-NO's too.
They ask that you DO NOT COPY & PASTE their list,
just use the lists from there.
Other options for checking into copyrights are listed below as
good reliable sources for information:
We also have an area for links to share that have some
safe links to get tubes from: