Write to us any time at heymysound@gmail.com — we read every message and get back to you as soon as we can.
Open MySound → Settings → General, and click "Restore Purchases." This re-checks your Apple account for a previous purchase and unlocks Pro again — no need to buy it twice, including on a new Mac signed in with the same Apple ID.
In the IPTV tab, use the import option to choose a local M3U/M3U8 file or enter a URL. This is a MySound Pro feature.
In the Audio or Video tab, just drag a folder onto MySound — it builds a list from everything inside automatically.
MySound is sandboxed by macOS for your privacy, so the first time you open a file from a new folder, macOS will ask you to grant access to it. Once granted, MySound remembers it for next time.
Email heymysound@gmail.com with as much detail as you can — what you were doing, what you expected, and what happened instead — and we'll take it from there.