You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

afconvert MPG3?

'MPG3' = MPEG Layer 3 (.mp3, .mpeg, .mpa)
data_formats: '.mp3'

afconvert help shows this conversion format, which I was surprised to see, but it is throwing the following error when I attempt to use it which seems to suggest it doesn't understand the format.

Error: ExtAudioFileSetProperty('cfmt') failed ('fmt?') (1)

Macbook Pro, Mac Pro, Mac OS X (10.6.2), RAID card

Posted on Feb 27, 2010 11:26 AM

Reply
Question marked as Top-ranking reply

Posted on Feb 28, 2010 6:22 PM

'Core Audio can read, but not write, MP3 files...'

http://developer.apple.com/mac/library/documentation/MusicAudio/Conceptual/CoreA udioOverview/WhatsinCoreAudio/WhatsinCoreAudio.html
1 reply

afconvert MPG3?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.