MIME Type / media folders / upload

Hello,

1 - I'm trying to upload a mp3 file and it says "This file type is not supported."; added the file type to joomla media, but it still shows the error

2 - How can I manage folders inside the media folder; using CPANEL I created a folder inside components/com_flexicontent/uploads/ of name Retiro2017Out, but it doesn't appear in the file manager;

3 - also using CPANEL I uploaded a large zip file and it also doesn't appear in the file manager

4 - then I uploaded that same large zip file using the flexicontent file manager; it uploaded without giving error, but the file that has about 570 mb appears in CPANEL has having about 450 mb and also it doesn't appear in file list

Thanks

EDIT1:
already solved number 1

to upload more 450 you need to allow it in your server like in php.nin

Right.

But I uploaded the file to the folder using CPANEL and it doesn't appear in the flexicontent file list! Neither the folder I also created.

you need to use add via url
flexicontent doesn't scan upload folder

Hello

inside Flexicontent file field
you want to use the files in Joomla's "media" manager ?
by default they Flexicontent uses its own folders

(optionally) Selecting from Joomla media manager was added to v3.3.0-dev
it does not exist in v3.2.x

Thanks,

It was nice to be able to organize in folders when we're uploading.

But still I don't get why the upload reaches to 450mb (more or less) and stops! The CPANEL php.ini file is set to 1gB maximum upload size, the flexicontent is set to 0 (so that it doesn't have size limitations) but I can't upload large files!

And what is more "funny" is that the file uploads until it reaches 450mb (more or less), stops there, I see it in CPANEL but flexicontent doesn't show it!

What can this be?

Thanks