File requirements - AMM Distro API

Artwork

	Requirement
Format	JPEG or PNG
Shape	Square (width equal to height)
Size	At least 1400×1400 pixels; 3000×3000 recommended
File size	Up to 50 MB

Artwork is stored and delivered as a 3000×3000 JPEG. Stores also reject artwork with website addresses, social handles, store logos, prices or blurry and pixelated images, so check covers before sending them.

Audio

	Requirement
Format	WAV (uncompressed PCM) or FLAC
Bit depth	16-bit or 24-bit
Sample rate	44.1 kHz to 192 kHz
Channels	Mono or stereo
Length	At least 1 second
File size	Up to 2 GB

MP3, AAC and other compressed formats are refused. Send the final master, with no silence added before or after the track.

When a file is refused

The file’s status becomes failed and its error says exactly what’s wrong, for example:

The audio file is 32-bit; use 16- or 24-bit
The artwork file is 3000×2000; artwork must be square
The audio file does not match the sha256 you sent; the file may be incomplete
The artwork file URL returned HTTP 403

Send the release again with a corrected file.

⌘I