SoundkeepAssign each cassette a short identifier in a separate inventory, then place that identifier on a new removable case insert or external enclosure rather than over the original shell label. Record both sides, visible dates, creators, content notes, condition, and storage location.
Inspect the cassette using our pre-play checklist before attempting identification by sound. After inventory work, return it to the conditions in our cassette storage guide.
One row should answer six questions
Start with what can be seen safely
Transcribe the shell, case, and insert exactly, preserving spelling and question marks. Photograph both sides and the case. Do not erase, overwrite, or peel an original label in order to make the collection look consistent.
If a label is loose, keep it with the cassette in a protective enclosure and note its position. Avoid household tape and pressure-sensitive repair labels.
Use identifiers that survive sorting
A simple prefix plus padded sequence works better than a title that may later prove wrong. Keep the scheme short enough to write on a new insert and consistent enough to sort digitally. Never recycle an identifier after an item is removed.
For multi-cassette sets, give each cassette its own identifier and also record the set relationship.
Separate transcription from interpretation
Use one field for the exact label text and another for your description. Mark dates as exact, approximate, or unknown. Name speakers only when the identification is supported.
This prevents later assumptions from replacing original evidence. Corrections can be added without rewriting history.
Add condition without diagnosing through playback
Use observable terms: cracked shell, loose label, tape protruding, uneven pack, visible residue, mold suspected, or case missing. Do not call a tape “good” merely because the shell looks clean.
Keep contaminated or wet media separate. Playback is a later decision requiring a tested deck and appropriate risk assessment.
Connect digital files through the same identifier
When a tape is digitized, begin the master filename with its collection identifier and record the capture date, side, equipment, and errors. Link to the workflow in our cassette digitization guide.
Do not depend on a music application's display title as the only inventory. Retain a portable spreadsheet or text export with the files.
Audit the collection in manageable groups
Work one shelf or box at a time and mark the location only after the cassette is returned. Back up the inventory during the project. A partially complete accurate inventory is more useful than a rushed list with duplicated identifiers.
Design the inventory so another person can use it
A title alone is not enough when several tapes say “mix,” “interview,” or “family.” Include the physical location, side labels, approximate duration when known, language, participants if confirmed, and any restriction on access. Define abbreviations in a short readme.
Use controlled choices for condition and digitization status so entries sort consistently. Keep a free-text note for unusual evidence rather than forcing every observation into a category.
Resolve duplicates without assuming they are identical
Two cassettes with the same handwriting may be copies, different generations, alternate takes, or unrelated recordings made on reused labels. Give each physical cassette its own identifier and compare content only after both can be played safely.
When a digital transfer reveals a relationship, link the records in the inventory instead of deleting one entry. Physical differences, edits, noise, and annotations may still matter.
Protect the inventory itself
Save the working file in an open, widely readable format and keep independent backups. Export a clean copy after major sessions and include the field definitions, identifier rules, and date of the last audit.
A printed shelf list can help during an outage or move, but it should not contain sensitive personal descriptions if the storage room is shared.
Schedule a small annual review for location changes, new digital copies, and condition notes. Do not rewrite the original observation; add a dated update so deterioration or stabilization remains visible.