Here is a folder that has shiurim from the Mir from a talmid of Rav Asher Arieli. These shiurim include the sources (mareh m'komos). The shiurim are all typed out, very clear, broken into digestible units.
B'iyun, in-depth Gemara is just too difficult to learn through audio or video. A good b'iyun shiur reveals the complexity, layers, and nuance of the Gemara. To try to grasp all of that through video or audio is very ineffective. But having it written out, although serves as no substitute for being in a shiur, is a good second choice. You can read and reread as fast or as slow as you like, search within the text, copy-past and make your own short-handed notes, etc.
It's an extremely advanced shiur but if you have some basic knowledge of Gemara you should be able to follow. But even if you have been through these sugyas before, it's worthwhile to learn the Mir Mehalech as well. From the profundity of the shiurim, you get a feel that the Gemara is Divine.
The folder is constantly being updated as the Mir goes through the cycle.