I will consider the Nplayer even I way to many times have spend money on players not living up to their promise and little time after ac3 codec is removed and then its just down hill with updates until at last ads for a new player shows up inside the player.
1. nPlayer
now officially licenses AC3 and, therefore, won't drop its support. It's "only" DTS that it's lacking.
2. as has been explained in my past posts (see the recommended article series), upon Dolby's cease and desist order, many developers have chosen to keep AC3 support for their existing customers (old versions of discontinued apps can be downloaded from the AppStore on devices already used for direct downloading) and start a brand new one - now, without AC3.
Basically, it's Dolby Laboratories that need to be "thanked" for the wave of fully "abandoned" players...
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Get a Nexus 7, I have the 2012 version and it's fantastic. For movies you can most likely play anything you like on a Nexus, as others have said MX Player is awesome and they update the codecs for it. Plus with a Nexus you can plug a USB thumb drive into it direct and play movies of it should you wish. So in addition to the 32GB on the Nexus 7, you can plug in a 128GB flash drive which you can get for around $40 if you search.
Another vote for the N7. The 2013 model is (also) fantastic when it comes to video playback; particularly if you do it using the built-in speaker. STEREO, and it's much better than the iPad's mono speaker. I too use the N7 for video playback.
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I own all the players i have been able to find... I use filebrowser, goodplayer and imedia player.
Unfortunately, these players aren't as powerful as nPlayer. With the latter, you could have much better experience, particularly when playing back MKV files.
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I have yet to find a file that can't be played with MX Player. I believe even the weird Japanese file codes can even be played on MX Player.
Yes, SSA subs are fully supported by MXPlayer; for example, those of the standard test video Suzumiya at
http://www.auby.no/files/video_test..._vorbis_styled_and_unstyled_subs_suzumiya.mkv