Since the recent update to MX Player, many users are running into a new problem: there's no sound in certain videos. It turns out the latest release of the popular video player removed support for two audio codecs: AC3 and MLP. Unfortunately, it seems this is a result of licensing issues, meaning MX Player will no longer ship with built-in support to play these audio formats. However, there is a simple workaround that will get things working again with relatively little hassle.
While it doesn't affect those of you who have no idea what FLAC (Free Lossless Audio Codec) is, today's Android 3.1 announcement (see the SDK release here) will make a lot of people who gave up MP3s for FLAC files happy. Forget happy - think ecstatic. Unlike MP3s, FLAC is a lossless codec, meaning it does not degrade in quality after compression, making it the perfect solution for audiophiles who really care about the quality of their sound.