Back up the whole project
Collect or consolidate external audio and samples when the DAW supports it. A session file that depends on samples scattered across the computer may not reopen correctly on another device.
Keep a working copy and at least one separate backup. For important work, consider a second copy stored in a different physical location or a reputable cloud service.
Use clear versions
Include a date or version number in important exports and avoid overwriting the only final mix. Keep filenames readable and consistent.
Separate project files, delivered masters, stems and administrative documents. This makes it easier to locate the right version when a client requests a revision.
Test recovery
Periodically open a backed-up project from the backup location or restore a test folder. Confirm that audio files, presets and other required assets are present.
A backup that has never been tested may contain missing files or corrupted data. Schedule a quick check and update the process as your library grows.