MP3, WAV or trackout — which one you actually need

Three formats, three prices, and most people pick by price. Pick by what happens to the record after you write to it instead.

MP3 — the demo and the release

An MP3 master is one stereo file, compressed. It is finished: the beat as the producer mixed it, bounced down.

You can absolutely release on it. Plenty of records that charted were cut over an MP3. What you cannot do is take it apart. If the 808 is too loud on your verse, it stays too loud, because there is no 808 — there is one file with everything already glued together.

Use it when: you are writing, demoing, releasing quickly, or the beat already sounds like the record.

WAV — the same thing, uncompressed

A WAV master is the same single stereo file, without the compression. Bigger, and it survives what you do to it afterwards.

That matters more than audiophile argument suggests. MP3 encoding throws information away, and that loss compounds when the file gets processed again — mixed against vocals, limited, then re-encoded by a streaming service. Starting from WAV means the only lossy step is the last one.

Use it when: you are releasing properly and someone is mixing your vocals into it. This is the default for most people making real records.

Trackout — the stems

A trackout is the beat delivered as separate files: drums, bass, melody, and whatever else the producer had on the session, each exported on its own.

This is the only format where a mix engineer can actually work. Mute the melody under the hook. Push the kick. Duck the 808 where the vocal sits. Re-balance the whole thing around your voice rather than fitting your voice into a finished mix.

It is also the most work. Stems arrive as a folder, not a file, and someone has to know what to do with them. If nobody on your record is mixing, trackouts buy you nothing you will use.

Use it when: you have a mix engineer, or you are one.

The one question

Is anyone mixing this record, or is the beat going out roughly as the producer bounced it?

If nobody is mixing it — MP3 or WAV, and the choice is just about how much processing the file will take afterwards.

If someone is mixing it — trackout, or you are paying an engineer to fight a stereo file.

The part that isn't about audio

Format also decides who owns the recording.

On the MP3 plan, the master rights and master royalties are split 50/50 with the producer. On WAV Unlimited and Trackout, the master is 100% yours.

That is worth more than the monthly difference on any record that actually does numbers. If you are releasing something you believe in, the format decision and the ownership decision are the same decision — which is covered properly in what you actually own when you lease a beat.

For producers reading this

Upload all three when you can. A beat with stems attached is a beat a serious artist can actually use, and it is the difference between being demoed over and being released.

The preview an artist hears is the file you upload as the preview — we do not generate it and we do not tag it. If your preview is the tagged version, that is what plays. Worth checking on your own catalogue.