Audio files you upload to DistroKid should be WAV, MP3, M4A, FLAC, AIFF, or Windows Media (WMA).
If you're sending a WAV, 16-bit, 44.1 kHz WAV is typical, but pretty much any specification works.
The maximum size that DistroKid will accept is 1 GB. If you have a track that's larger than that, consider converting it to FLAC format before uploading to DistroKid. FLAC is a beautiful, lossless format (same audio quality as WAV), but the files are relatively small.
Tracks uploaded to DistroKid must have a duration under 5 hours (300 minutes), and the sum of tracks on an album cannot exceed 10 hours (600 minutes). Additionally, albums cannot contain songs where the average track length is less than 60 seconds.
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