Inner and outer sleeves
Replace a dirty or abrasive inner sleeve after cleaning the record.
Inner and outer sleeves requires separating identification data, observations and user decisions. The process below improves repeatability without pretending to provide an automatic expert verdict.
Key principles
- Replace a dirty or abrasive inner sleeve after cleaning the record.
- An outer sleeve protects the cover but should not place strong stress on the spine.
- Keep original edition components even when using new protective sleeves.
Step-by-step process
- Collect information from the copy, equipment or manufacturer manual and record the source.
- Make one change or observation at a time so causes are not mixed.
- Record the outcome in the catalogue, listening log or equipment tracker with a date.
- For sale, service or reconfiguration keep the previous entry as history.
Common mistakes
Common problems come from copying settings from another model, ignoring the exact edition or treating an estimated calculator result as manufacturer guidance.
Checklist
- Are you identifying the exact copy and setup?
- Are you recording date, units and source?
- Does the manufacturer manual take priority?
- Did you back up the catalogue before a major change?