BOTH 'add support for FLAC and AAC files' & 'Ask before installing third party app'

1) At this sort of price (bearing in mind all the free alternatives) I want it to be "all doing", so FLAC and AAC are important.
2) Some of us have hassle with specific "third party apps" AND it is good practice to keep users informed (perhaps using an "advanced install option" if you are worried about being too complex for some users).