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Tech: What is the difference between MP3 and MP4? Most people don't know the difference between the two.

MP3 and MP4 Difference: MP3 and MP4 are two names that are commonly heard by people interested in the tech world. However, many people still don't know the difference between MP3 and MP4 files.

AAC vs. MP3: Which is the best audio file format?

MP3 has been the most popular lossy audio file format for decades, but AAC is now a popular alternative. Here's what you need ...