It took more than three months for AVPlayer(HD), one of the best iOS multimedia players (iPhone / iPad versions), to reenter the App Store. My previous, dedicated article (with more than 16,000 shares) is HERE. Now it's back -- and with official AC-3 support!
The latter means, at least based on my previous tests, AVPlayer should be preferred over CineXPlayer, which delivers worse performance when it comes to playing back MKV's. MKV's, compared to Apple's native formats (mov / mp4 / m4v), are far more flexible, including the ability to store any kind of additional info and tracks like native Blu-ray subtitles, audio etc.
I'll post a detailed review of the new versions very soon.