@ David Williams

There is a Sticky in this forum, that explains a lot about this issue and has ways to get around it.

It's called "How to find music", and if you bothered to look before posting, you probably would not have needed to post.

If you still, after reading the Sticky, feel the need to get answers to some of these questions, then feel free to post a followup. Also please say if something that you wanted to know is not covered in there.