A final listening file is not a complete project archive. If a speaker later requests a correction, you may need the original tracks, project file and supporting assets. Decide what the archive must let you do before deleting working copies.
Collect the required material
Keep the untouched recordings, the editable project and the assets referenced by that project. Include relevant artwork, approved music files, transcripts and notes where they are part of the workflow. Keep the final delivered audio in a clearly named folder beside them.
Add a short readme with the editing tool and version, the approved delivery file and any important missing material. If an asset lives in another system, record the approved retrieval path rather than copying access credentials into the archive.
Remove clearly temporary exports only after checking that they are not the sole copy of an important revision. Use a retention policy suitable for the project and the participants instead of keeping personal material forever by default.
Test the archived copy
Copy the archive to its intended storage location and reopen the project from that copy. Check for missing assets and play a short section. Compare the final file's duration and name with the approved delivery note.
If the project depends on a file on one person's desktop, fix that dependency before calling the archive complete. A folder can be large and still be missing the one asset needed for a later export.
Keep the working source until the archive check succeeds. Repeat this small routine for each episode. Consistency makes future corrections faster than a collection of differently named folders whose contents nobody has tested.