Stuck at Memory card access.

[Shonumi]

In all honesty, it sounds like you have a bad dump. If you don't have a memory card file, Dolphin will create a new one for you. The game hanging or refusing to go forward when it accesses memory cards could be do to an bad dump (corrupt disk image). Redump your game and verify the MD5 hash against sites like redump.org or GameTDB.com