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+# CBR to CBZ Converter
+
+A command-line tool to convert `.cbr` (Comic Book RAR) files to `.cbz` (Comic Book ZIP) files with maximum compression.
+
+## Features
+
+- **Batch Processing** - Processes a batch of files in a directory automatically
+- **Maximum Compression** - Uses the max compression rate for zips automatically
+- **Progress Tracking** - Shows conversion progress and file size comparisons
+- **Smart Skipping** - Avoids overwriting existing CBZ files
+- **Optional Cleanup** - Prompts to delete original CBR files after conversion
+
+## Download
+
+Download the latest release for Windows from the [Releases](https://github.com/driftywinds/cbr2cbz/releases) page.
+
+## Quick Start
+
+### Windows
+1. Download `cbr2cbz.exe` from [Releases](https://github.com/driftywinds/cbr2cbz/releases)
+2. Place it in the folder containing your `.cbr` files
+3. Double-click `cbr2cbz.exe` or run it from Command Prompt
+4. Follow the prompts
+
+### Linux/macOS
+
+1. Compile the binary for your platform
+2. Make it executable:
+   ```chmod +x cbr2cbz-linux  # or cbr2cbz-macos```
+3. Place it in the folder with your `.cbr` files
+4. Run it:
+   ```./cbr2cbz-linux  # or ./cbr2cbz-macos```
+
+## Usage
+
+Simply place the executable in a directory containing `.cbr` files and run it:
+
+```bash
+cbr2cbz.exe  # Windows
+./cbr2cbz    # Linux/macOS
+```
+
+The tool will:
+1. Scan the current directory for all `.cbr` files
+2. Convert each file to `.cbz` format with maximum compression
+3. Display progress and file size comparisons
+4. Provide a summary of successful/failed conversions
+5. Ask if you want to delete the original `.cbr` files
+
+### Example Output
+
+```
+CBR to CBZ Converter
+============================================================
+Found 3 CBR file(s) to convert
+============================================================
+
+Processing: Amazing Spider-Man 001.cbr
+  → Extracting...
+  → Creating CBZ with 24 files...
+  ✓ Created: Amazing Spider-Man 001.cbz
+    Original: 45.32 MB
+    New: 42.18 MB
+    Change: -6.9%
+
+Processing: Batman 001.cbr
+  → Extracting...
+  → Creating CBZ with 28 files...
+  ✓ Created: Batman 001.cbz
+    Original: 52.14 MB
+    New: 48.92 MB
+    Change: -6.2%
+
+============================================================
+Conversion Summary:
+  ✓ Successful: 2
+  ⚠ Skipped: 0
+  ✗ Failed: 0
+  Total: 2
+
+============================================================
+Delete original .cbr files? (yes/no):
+```
+
+## Building from Source
+
+### Prerequisites
+- [Go 1.16 or later](https://go.dev/dl/)
+
+### Build Instructions
+
+1. Clone the repository:
+   ```bash
+   git clone https://github.com/driftywinds/cbr2cbz.git
+   cd cbr2cbz
+   ```
+
+2. Initialize Go module and install dependencies:
+   ```bash
+   go mod init cbr2cbz
+   go get github.com/nwaples/rardecode
+   ```
+
+3. Build for your platform:
+
+   **Windows:**
+   ```bash
+   go build -ldflags="-s -w" -o cbr2cbz.exe main.go
+   ```
+
+   **Linux:**
+   ```bash
+   go build -ldflags="-s -w" -o cbr2cbz-linux main.go
+   ```
+
+   **macOS:**
+   ```bash
+   go build -ldflags="-s -w" -o cbr2cbz-macos main.go
+   ```
+
+4. **Cross-compile** for other platforms:
+   ```bash
+   # Windows from Linux/Mac
+   GOOS=windows GOARCH=amd64 go build -ldflags="-s -w" -o cbr2cbz.exe main.go
+   
+   # Linux from Windows/Mac
+   GOOS=linux GOARCH=amd64 go build -ldflags="-s -w" -o cbr2cbz-linux main.go
+   
+   # macOS from Windows/Linux
+   GOOS=darwin GOARCH=amd64 go build -ldflags="-s -w" -o cbr2cbz-macos main.go
+   ```
+
+The `-ldflags="-s -w"` flags reduce the executable size by stripping debug information.
+
+## FAQ
+
+**Q: What's the difference between CBR and CBZ?**  
+A: CBR files use RAR compression, while CBZ files use ZIP compression. CBZ files are more widely supported and don't require proprietary software to open.
+
+**Q: Will this damage my original files?**  
+A: No. The tool only deletes original files if you explicitly choose "yes" when prompted. Until then, both CBR and CBZ files coexist.
+
+**Q: Does this work with password-protected CBR files?**  
+A: No, password-protected RAR files are not supported.
+
+**Q: Why is the CBZ file sometimes larger than the CBR?**  
+A: RAR typically achieves better compression than ZIP. However, CBZ files offer better compatibility and are easier to work with.
+
+**Q: Can I convert CBZ back to CBR?**  
+A: This tool only converts CBR → CBZ. For the reverse, you'd need a different tool.
+
+## Dependencies
+
+The project uses the following Go library:
+- [nwaples/rardecode](https://github.com/nwaples/rardecode) - RAR archive reading
+
+---
+
+Made with ❤️ for comic book enthusiasts