If you've ever needed to convert media on your Mac to various formats you've probably accumulated a collection of various applications that serve some functions and not others. Adapter saves you the trouble by letting you convert just about any audio, video or image file to the format you need.

Mac OS X: You can convert audio files on your Mac with iTunes or a few other third-party applications, but there are often unnecessary steps involved and certain formats aren't supported. xACT is a very simple app without those problems and just gets the job done.

With H.264 solidly planted as the codec of choice for just about every mobile device, we've come to a point where you can encode a video once and play it back on pretty much any mobile device. Here's how.