M4A stands for MPEG 4 Audio and is a filename extension used to characterize audio recordsdata. Allowing the streaming service to compress and convert your audio information doesn't necessarily mean the standard will degrade, but some comp…

M4A stands for MPEG 4 Audio and is a filename extension used to characterize audio recordsdata. Step 3: Start conversion. Spotlight Music" within the Library" list on the left side of iTunes. Select the album with the M4A songs you are cha…