WMA to M4A
M4P to M4A
MP4 to M4A
AAC to M4A
RAX to M4A
AA to M4A
Convert WMA to M4A - WMA to M4A Converter
To use DRM Converter - DRM Remover Software as WMA to M4A converter, select MPEG4 AAC from "Encoder" drop-down list and set a desired MPEG4 AAC quality parameter in "Compression Quality" drop-down list in DRM Converter's Settings. Select WMA files for conversion using the "Select Files" button in DRM Converter's main window toolbar (you can use Ctrl or Shift to select two or more files) or using drag&drop (for example from the Windows Explorer). Also you can drag&drop a folder with files or a folder structure. You will see all selected WMA files in the DRM Converter's main window. To delete a WMA file from this list, select it and click on the "Delete" button in DRM Converter's main window toolbar. Once the WMA files are present in your list, click the "Convert" button to convert WMA to M4A.
Since MPEG-4 is a container format, MP4 files may contain any number of audio, video, and even subtitle streams, making it impossible to determine the type of streams in an MP4 file based on its filename extension alone. In response, Apple Inc. started using and popularizing the M4A file extension using for audio-only MP4 files.
Windows Media Audio (WMA) is brand name for several audio file formats developed by Microsoft. The original WMA, also known as WMA Standard, was initially intended to be a competitor to the popular MP3 format and has become the second most widely supported format for compressed audio. The newer and more advanced WMA Professional has positioned itself as a competitor to the Advanced Audio Coding format (AAC).
Janus is the codename for a recent version of Windows Media DRM, which is sometimes used in conjunction with WMA. The PlaysForSure DRM technology supports time-limited subscription music such as those offered by unlimited download services, such as MTV's URGE, Napster, Rhapsody, Yahoo! Music Unlimited and Virgin Digital. Janus PlaysForSure DRM is supported on many modern portable audio devices and some streaming media clients.