TFFileExtractor

July 22, 2026 · View on GitHub

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TFFileExtractor

.NET Version Language Platform License

TF Card File Extractor for Media Players — A native Windows GUI tool for recovering hidden or encrypted audio files from FAT32-formatted TF/memory cards.

preview

Features

  • Drive Selection — Auto-detects removable / fixed disks
  • FAT Table Scan — Reads the FAT32 file allocation table directly, bypassing OS restrictions
  • File Detection — Dual detection via ID3v2 tags and MPEG frame sync
  • Multi-Select Export — Select all / invert selection, independent export directory picker, real-time progress display

How It Works

Many media players (recording pens, dashcams, music players) store audio on FAT32-formatted TF cards. When a file is "deleted" by the device, only the FAT table entry is marked as free — the raw audio data remains on the card. This tool reads the FAT32 file allocation table directly at the block level (\\.\X:), bypassing the OS file system layer, to locate and recover those orphaned audio files.

Quick Start

dotnet restore
dotnet run --project src/TFFileExtractor.Wpf

Warning


This tool requires administrator privileges for raw disk access (\\.\X:). Please comply with local laws and regulations when using this tool — only use it to recover data from storage devices you legally own. The author assumes no liability for any misuse.

Build

# Single-file publish
dotnet publish src/TFFileExtractor.Wpf -c Release -r win-x64 `
  --self-contained true `
  -p:PublishSingleFile=true `
  -p:IncludeNativeLibrariesForSelfExtract=true

# Output: src/TFFileExtractor.Wpf/bin/Release/net8.0-windows/win-x64/publish/TFFileExtractor.Wpf.exe

License

MIT