A creative professional's storage problem looks structurally different from a developer's or a general user's. Instead of thousands of small cache files, the sinks tend to be a smaller number of very large items — project bundles, media caches, and raw footage — often spread across several external drives rather than concentrated on the internal SSD. A storage tool needs to handle that shape of problem specifically.
Package-style project files need to be openable, not just measured
Final Cut Pro's .fcpbundle files, and similarly, After Effects' project-adjacent cache and render folders, are technically packages — directories that Finder presents as a single file but which contain a real internal structure of subfolders. A storage tool that doesn't let you see inside a package will report its total size correctly but won't help you understand what inside it is actually large: source media that's been imported and duplicated into the bundle, render files, or the project database itself.
The distinction matters practically because the safe-to-delete answer differs by what's inside. Render and preview files inside a project bundle are usually safe to clear because the application will regenerate them; the actual source media referenced by the project is not something you want a storage tool accidentally treating the same way. A tool that shows you the internal structure lets you make that distinction; one that only reports package totals as an opaque blob doesn't.
Adobe's cache directories accumulate quietly
Applications in the Adobe Creative Cloud family maintain their own media cache directories — Premiere Pro and After Effects both cache decoded video and audio to speed up playback and rendering, and these caches can grow substantially over a project's lifetime without any obvious prompt to clear them. Adobe's own applications typically include cache management preferences internally, but a storage tool that at least surfaces these cache locations clearly, sized and identified, saves a trip into each application's own preferences to check.
As with any cache, the safety profile is generally favourable — clearing a media cache costs you re-render or re-decode time, not source data — but it's still worth confirming a given cache is genuinely a cache and not, in an unusual configuration, pointing at something a specific project setup depends on more directly.
Large video is a different scanning problem than many small files
Where a developer's storage problem is dominated by file count, a creative professional's is often dominated by a smaller number of very large individual files — raw camera footage, ProRes exports, uncompressed masters. Scanning this kind of tree is generally fast for a storage tool, since there are fewer directory entries to enumerate relative to the total bytes involved, but the review-before-delete step matters more here per-item, since a single 40GB export you've forgotten to back up elsewhere is a much bigger loss than any individual small cache file.
This is also where the itemised-review-before-cleanup principle, covered elsewhere in this series, earns its keep the most directly: with a handful of very large items rather than thousands of small ones, taking the extra thirty seconds to actually read the list before confirming a cleanup costs almost nothing and protects against a genuinely costly mistake.
External drive support isn't optional for this workflow
Creative work involving video in particular routinely outgrows an internal SSD, pushing active projects, footage archives, and backups onto external drives — sometimes several, connected via Thunderbolt or USB, sometimes only some of which are attached at any given time. A storage tool aimed at this workflow needs to scan external volumes as readily as internal ones, and needs to be clear about what it does when a drive that was previously scanned is now disconnected — showing stale, previously-cached results as if they were current is a meaningfully different (and more misleading) behaviour than clearly indicating the volume is currently unavailable.
Render caches and proxy media add up quietly across applications
Beyond Adobe's own cache directories, most professional video and motion tools generate some form of proxy or preview media to keep editing responsive without constantly re-processing full-resolution source footage. This proxy media is functionally similar to a cache in terms of safety — it's typically regenerable from the source, at the cost of re-processing time rather than any permanent loss — but it isn't always stored in a location that's obviously labelled as disposable. A storage tool that helps identify proxy and preview directories specifically, alongside more general-purpose caches, is doing the same job described above for Adobe's caches, just extended to the wider set of applications a creative professional's workflow typically touches.
Working across a rotation of external drives
It's common in creative work for external drives to rotate in and out of active use — an archive drive plugged in only when retrieving old footage, a scratch drive dedicated to a current project, a backup drive connected on a schedule rather than permanently. A storage tool used in this context benefits from making it easy to distinguish "this volume isn't currently attached" from "this volume is attached and genuinely empty," since the two look similar at a glance but call for very different responses. It's also worth checking, before relying on any tool's numbers for a drive you plug in only occasionally, that the scan you're looking at reflects the drive's current state rather than a cached result from the last time it was connected — a distinction that matters more here than for an internal drive that's essentially always present.
A checklist for creative workflows specifically
| Need | What to look for |
|---|---|
| Understanding what's inside a large project bundle | Ability to browse into package-style files, not just total their size |
| Identifying Adobe or similar app media caches | Clear identification and sizing of cache locations, separate from project source data |
| Reviewing large individual files before deleting | An itemised review step, especially important with fewer, larger items |
| Working across multiple external drives | Reliable scanning of any mounted volume, and honest handling of disconnected drives |
Where VolumeLens fits
VolumeLens scans any mounted volume, internal or external, and lets you browse into package-style directories to see their actual internal structure rather than reporting only a package total. Cleanup always shows an itemised review before anything moves to Trash, which matters as much for a handful of large media files as it does for thousands of small cache entries. The paid Insights tier extends folder recognition to common large-media and cache patterns alongside the developer-focused ones. You can see how it handles your own project drives by downloading VolumeLens or check what's included at each tier on pricing.