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Whats the difference between MPEG-4 and MPEG-2 AAC?

April 26, 2017AAC difference MPEG-2 MPEG-4

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Whats the difference between MPEG-4 and MPEG-2 AAC?

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There is practically no difference between MPEG-2 and MPEG-4 AAC streams except in the header. But there are some applications like QuickTime which don’t accept MPEG-2 AAC. Use Ivan & Menno to change the header. Other programs capable of the header fix are Nic’s AAC Patch or foobar2000.