sorting / managing files

Hi Adriana,

I'd love to help answer some of your questions that relate to the Media module. However, some of your other questions go beyond the scope of this module, or can only be answered relative to the project on which you're working.

what is the best way to sort / manage files?

This is completely dependent on your project needs. How will you be using your media? How will your users be interacting with it? It would probably be helpful for you to try and think of your media like you do your other content... You use fields, views, references, etc. to accomplish your end goals. It's much the same with media.

Tags?

As with other fieldable entities (nodes, users, etc.) a well planned taxonomy system is certainly one way by which you can keep your media organized. Here's a good link to checkout:

http://drupal.org/node/46268

or folders? where can I configure where the files are stored?

Managing your media storage depends completely on what your project is and how it will be used. For example, if you're building a simple site that will be managed by only a few users, then perhaps all you need is a few simple directories within your public/private file path, such as "media/images" or "media/videos" and so on.

However, if your site includes multiple users, multiple means of user-submitted content, including media, then a more robust upload configuration is probably necessary. For this you'll need the Token module, with which you can specify custom directories based on user ID, current date, etc.

These configurations can be made here (on nodes):

Administration » Structure » Content types » [Your content type] » Manage fields » [Your image or file field]

For media uploaded directly from admin/content/media, you can checkout this sandbox project, which looks promising:

http://drupal.org/sandbox/muriqui/1317078

I hope this helps answer some of your questions.