You can can pass them along however is convenient, but it isn’t possible to embed codes directly in files (more info here).
- How do I get my sales reported to music charts?
- Which charts does Bandcamp report to, and when?
- Does Bandcamp supply UPCs and ISRCs?
- Why am I getting an error that says my code isn’t valid?
- Are all sales eligible for reporting?
- Do I need to register my releases directly with the music charts?
- How do I include my ISRC in tracks I send to radio?