Use mame-tools chdman to mass convert WAV/BIN/cue CD images to CHD format

iso_to_chd.sh

#!/bin/bash

# Check if directory argument provided
if [ $# -eq 0 ]; then
	echo "Usage: $0 <directory>"
	echo "Example: $0 /path/to/psx"
	exit 1
fi

TARGET_DIR="$1"

# Check if directory exists
if [ ! -d "$TARGET_DIR" ]; then
	echo "Error: Directory does not exist: $TARGET_DIR"
	exit 1
fi

# Function to format seconds into human-readable time
format_time() {
	local seconds=$1
	local hours=$((seconds / 3600))
	local minutes=$(((seconds % 3600) / 60))
	local secs=$((seconds % 60))
	
	if [ $hours -gt 0 ]; then
		printf "%dh %dm %ds" $hours $minutes $secs
	elif [ $minutes -gt 0 ]; then
		printf "%dm %ds" $minutes $secs
	else
		printf "%ds" $secs
	fi
}

echo "Converting CD images to CHD in: $TARGET_DIR"
echo "================================================"
echo ""

# Count total CUE files
echo "Scanning for CUE files..."
total_files=$(find "$TARGET_DIR" -type f -iname "*.cue" | wc -l)

if [ $total_files -eq 0 ]; then
	echo "No CUE files found in $TARGET_DIR"
	exit 0
fi

echo "Found $total_files CUE file(s) to convert"
echo ""

# Counter for statistics
current=0
total_converted=0
total_failed=0

# Start time
start_time=$(date +%s)

# Find all .cue files
find "$TARGET_DIR" -type f -iname "*.cue" | sort | while read -r cuefile; do
	((current++))
	
	dirname=$(dirname "$cuefile")
	basename=$(basename "$cuefile" .cue)
	chdfile="${dirname}/${basename}.chd"
	
	# Calculate progress percentage
	progress=$((current * 100 / total_files))
	
	# Calculate time estimates
	current_time=$(date +%s)
	elapsed=$((current_time - start_time))
	
	if [ $current -gt 1 ]; then
		avg_time_per_file=$((elapsed / (current - 1)))
		remaining_files=$((total_files - current + 1))
		eta=$((avg_time_per_file * remaining_files))
		eta_formatted=$(format_time $eta)
		elapsed_formatted=$(format_time $elapsed)
	else
		eta_formatted="calculating..."
		elapsed_formatted=$(format_time $elapsed)
	fi
	
	# Progress bar with standard ASCII characters
	bar_width=30
	filled=$((progress * bar_width / 100))
	empty=$((bar_width - filled))
	bar=$(printf "%${filled}s" | tr ' ' '#')
	bar+=$(printf "%${empty}s" | tr ' ' '-')
	
	echo "[$bar] $progress% ($current/$total_files)"
	echo "Elapsed: $elapsed_formatted | ETA: $eta_formatted"
	echo "Converting: $basename"
	echo "---"
	
	# Convert to CHD (show all output)
	if chdman createcd -i "$cuefile" -o "$chdfile"; then
		echo "---"
		echo "✓ Successfully converted: $basename"
		
		# Parse cue file for referenced files and collect them
		cue_dir=$(dirname "$cuefile")
		files_to_delete=()
		
		# Add the cue file itself
		files_to_delete+=("$cuefile")
		
		# Parse cue file for referenced files (BIN, WAV, ISO, etc.)
		while IFS= read -r line; do
			# Match FILE lines with quoted or unquoted filenames
			if [[ $line =~ FILE[[:space:]]+\"([^\"]+)\" ]] || [[ $line =~ FILE[[:space:]]+([^[:space:]]+)[[:space:]] ]]; then
				referenced_file="${BASH_REMATCH[1]}"
				# Handle relative paths
				full_path="${cue_dir}/${referenced_file}"
				if [[ -f "$full_path" ]]; then
					files_to_delete+=("$full_path")
				fi
			fi
		done < "$cuefile"
		
		# Delete all referenced files
		for file in "${files_to_delete[@]}"; do
			echo "  Removing: $(basename "$file")"
			rm -f "$file"
		done
		
		((total_converted++))
		echo ""
	else
		echo "---"
		echo "✗ Failed to convert: $basename"
		echo "  Skipping deletion of source files"
		((total_failed++))
		echo ""
	fi
done

# Final statistics
end_time=$(date +%s)
total_time=$((end_time - start_time))
total_time_formatted=$(format_time $total_time)

echo "================================================"
echo "Conversion complete!"
echo "Total time: $total_time_formatted"
echo ""

This command will change the owner of all the CHDs:

sudo find /path/to/directory -type f -name "*.chd" -exec chown 1001:1001 {} +