The doctor
for your DJ drives.

Yes — if it's mounted as a volume in Finder (SMB/AFP), TrackDoc sees it. Just know that large NAS libraries scan significantly slower than directly-connected drives. TrackDoc warns you when a selected path is under /Volumes/ — you'll want Ethernet, not Wi-Fi, for 1 TB+ libraries.

Depends on library size, drive type, and whether content-hashing is on. Metadata-only scans are fast — a 150,000-track library on a directly-connected SSD typically finishes in a few minutes. Full MD5 content-hashing (the mode that catches re-encoded duplicates and renamed copies) reads every file and is slower — expect roughly 15–45 minutes on a SATA SSD, faster on NVMe, significantly slower on spinning disks and NAS mounts. Progress bar with file count and ETA runs the whole time; you can cancel mid-scan without losing what's already catalogued.

For external drives (USB, Thunderbolt, SD, NAS) you select via the file picker — no. macOS grants per-volume access. You only need to enable Full Disk Access under System Settings → Privacy & Security if you want to scan TCC-protected locations on your boot drive — Desktop, Documents, or Downloads on macOS 13+. Most TrackDoc use cases (scanning external DJ drives) don't require it.

TrackDoc is preview-first by default. Every analysis view — Scan, Compare, Organize Analysis, Diagnostics, Corrupt Files, Dedup — is read-only. Write actions are isolated to explicit operations: Clean Up Wizard (you step through and approve each group), Reorganization Planner (plan → simulate → execute, three distinct confirmation phases), Flatten Folder, VirtualDJ Path Fix (writes a backup of the prior database first), Sync / Clone / Merge, and Move to Trash from the Corrupt Files view. The dialog before "Execute" is the threshold — nothing writes before you cross it.

Yes, for the common destructive actions. Clean Up Wizard writes an undo manifest after each step, accessible via the "Undo last action" button up until the next action is committed. Files aren't permanently deleted — they're moved to .jam_trash/ at the root of the affected drive, which you can recover from manually at any time until you empty it. Corrupt files sent to quarantine can be restored from the Diagnostics view. VirtualDJ database edits write a timestamped backup of the prior .db automatically. That said: back up critical drives before large cleanups — the Terms place final data-safety responsibility on you.

No. TrackDoc is 100% offline except for a single Gumroad API call when you activate a license (and a periodic re-verify to catch cancelled subs). Scan results, file paths, catalogs, songbook exports — all local, all yours.

macOS only for now. TrackDoc is built on macOS-native APIs (diskutil, mdfind, Finder tags). A port isn't on the near-term roadmap — we'd rather be the best-in-class DJ tool on one platform than a mediocre one on three.

Gumroad handles billing. Cancel anytime from your Gumroad receipt email — existing Pro access runs until the end of your current billing period, then TrackDoc reverts to Free tier automatically on the next app launch.

Yes. Pay $199 once, get every TrackDoc update forever. The license re-verifies with Gumroad every 6 months to catch refunds and chargebacks, but otherwise fully offline.

Your existing license continues to work. TrackDoc caches license validity (14 days for Monthly, 180 days for Lifetime) and re-verifies in the background without blocking the app.

Not directly, but the Free tier lets you scan your drive and see every issue the Pro tier would fix. The Clean Up Wizard shows you the scope of problems even when the actions are Pro-only. If a single scan doesn't show you $9.99 worth of duplicates to clean up, you're already organized enough not to need us.

TrackDoc is built by JAM ON DJ Productions / RISE Studio Labs, a small studio focused on tools for the mobile DJ and KJ trade. Questions or feature requests: support@trackdoc.app.