diff --git a/build.sh b/build.sh
index 74642f5..e3ea3b3 100755
--- a/build.sh
+++ b/build.sh
@@ -1,4 +1,9 @@
 #!/bin/bash
+
+# Copyright Terence J. Boldt (c)2021-2024
+# Use of this source code is governed by an MIT
+# license that can be found in the LICENSE file.
+
 GOOS=darwin GOARCH=arm64 go build -o binaries/macos/apple-silicon/ProDOS-Utilities
 GOOS=darwin GOARCH=amd64 go build -o binaries/macos/intel/ProDOS-Utilities
 GOOS=windows GOARCH=amd64 go build -o binaries/windows/intel/ProDOS-Utilities.exe
diff --git a/main.go b/main.go
index 631b871..5937717 100644
--- a/main.go
+++ b/main.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
@@ -17,7 +17,7 @@ import (
 	"github.com/tjboldt/ProDOS-Utilities/prodos"
 )
 
-const version = "0.4.9"
+const version = "0.5.0"
 
 func main() {
 	var fileName string
diff --git a/prodos/basic.go b/prodos/basic.go
index 57befbf..5c613f1 100644
--- a/prodos/basic.go
+++ b/prodos/basic.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
diff --git a/prodos/basic_test.go b/prodos/basic_test.go
index 69b503e..168f6fa 100644
--- a/prodos/basic_test.go
+++ b/prodos/basic_test.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2022-2023
+// Copyright Terence J. Boldt (c)2022-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
diff --git a/prodos/bitmap.go b/prodos/bitmap.go
index b612e93..7a509e9 100644
--- a/prodos/bitmap.go
+++ b/prodos/bitmap.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
diff --git a/prodos/bitmap_test.go b/prodos/bitmap_test.go
index c4dc85b..d464e7b 100644
--- a/prodos/bitmap_test.go
+++ b/prodos/bitmap_test.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
diff --git a/prodos/block.go b/prodos/block.go
index 0730d8b..2938e8c 100644
--- a/prodos/block.go
+++ b/prodos/block.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
diff --git a/prodos/directory.go b/prodos/directory.go
index 35d4948..0a379ea 100644
--- a/prodos/directory.go
+++ b/prodos/directory.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
@@ -161,7 +161,10 @@ func CreateDirectory(readerWriter ReaderWriterAt, path string) error {
 	fileEntry.Version = 0x24
 	fileEntry.MinVersion = 0x00
 
-	writeFileEntry(readerWriter, fileEntry)
+	err = writeFileEntry(readerWriter, fileEntry)
+	if err != nil {
+		return err
+	}
 
 	err = incrementFileCount(readerWriter, fileEntry)
 	if err != nil {
@@ -300,7 +303,10 @@ func expandDirectory(readerWriter ReaderWriterAt, buffer []byte, blockNumber uin
 	directoryFileEntry := parseFileEntry(buffer[directoryEntryOffset:directoryEntryOffset+0x28], directoryHeader.ParentBlock, directoryHeader.ParentEntry*uint16(directoryHeader.EntryLength)+0x04)
 	directoryFileEntry.BlocksUsed++
 	directoryFileEntry.EndOfFile += 0x200
-	writeFileEntry(readerWriter, directoryFileEntry)
+	err = writeFileEntry(readerWriter, directoryFileEntry)
+	if err != nil {
+		return 0, err
+	}
 
 	return nextBlockNumber, nil
 }
@@ -396,7 +402,7 @@ func parseFileEntry(buffer []byte, blockNumber uint16, entryOffset uint16) FileE
 	return fileEntry
 }
 
-func writeFileEntry(writer io.WriterAt, fileEntry FileEntry) {
+func writeFileEntry(writer io.WriterAt, fileEntry FileEntry) error {
 	buffer := make([]byte, 39)
 	buffer[0] = byte(fileEntry.StorageType)<<4 + byte(len(fileEntry.FileName))
 	for i := 0; i < len(fileEntry.FileName); i++ {
@@ -429,8 +435,10 @@ func writeFileEntry(writer io.WriterAt, fileEntry FileEntry) {
 	//fmt.Printf("Writing file entry at block: %04X offset: %04X\n", fileEntry.DirectoryBlock, fileEntry.DirectoryOffset)
 	_, err := writer.WriteAt(buffer, int64(fileEntry.DirectoryBlock)*512+int64(fileEntry.DirectoryOffset))
 	if err != nil {
-
+		return err
 	}
+
+	return nil
 }
 
 func parseVolumeHeader(buffer []byte) VolumeHeader {
diff --git a/prodos/doc.go b/prodos/doc.go
index a9ba97d..de5d2ca 100644
--- a/prodos/doc.go
+++ b/prodos/doc.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
diff --git a/prodos/file.go b/prodos/file.go
index c642b2c..3167384 100644
--- a/prodos/file.go
+++ b/prodos/file.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
@@ -106,8 +106,10 @@ func WriteFile(readerWriter ReaderWriterAt, path string, fileType uint8, auxType
 		fileEntry.StorageType = StorageTree
 	}
 
-	writeFileEntry(readerWriter, fileEntry)
-
+	err = writeFileEntry(readerWriter, fileEntry)
+	if err != nil {
+		return err
+	}
 	return incrementFileCount(readerWriter, fileEntry)
 }
 
@@ -168,7 +170,10 @@ func DeleteFile(readerWriter ReaderWriterAt, path string) error {
 	// zero out directory entry
 	fileEntry.StorageType = 0
 	fileEntry.FileName = ""
-	writeFileEntry(readerWriter, fileEntry)
+	err = writeFileEntry(readerWriter, fileEntry)
+	if err != nil {
+		return err
+	}
 
 	return nil
 }
@@ -422,7 +427,7 @@ func GetFileEntry(reader io.ReaderAt, path string) (FileEntry, error) {
 		return FileEntry{}, err
 	}
 
-	if fileEntries == nil || len(fileEntries) == 0 {
+	if len(fileEntries) == 0 {
 		return FileEntry{}, errors.New("file entry not found")
 	}
 
diff --git a/prodos/file_test.go b/prodos/file_test.go
index 84db15b..37ac6ab 100644
--- a/prodos/file_test.go
+++ b/prodos/file_test.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
diff --git a/prodos/format.go b/prodos/format.go
index d276019..5b9c3e8 100644
--- a/prodos/format.go
+++ b/prodos/format.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
diff --git a/prodos/format_test.go b/prodos/format_test.go
index 3770da5..544dee0 100644
--- a/prodos/format_test.go
+++ b/prodos/format_test.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
diff --git a/prodos/host.go b/prodos/host.go
index 099befa..42f953f 100644
--- a/prodos/host.go
+++ b/prodos/host.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2022-2023
+// Copyright Terence J. Boldt (c)2022-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
@@ -28,6 +28,9 @@ func AddFilesFromHostDirectory(
 ) error {
 
 	path, err := makeFullPath(path, readerWriter)
+	if err != nil {
+		return err
+	}
 
 	if !strings.HasSuffix(path, "/") {
 		path = path + "/"
diff --git a/prodos/image.go b/prodos/image.go
index f4d1b35..5f27d6a 100644
--- a/prodos/image.go
+++ b/prodos/image.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
diff --git a/prodos/memfile.go b/prodos/memfile.go
index aeb674c..e03e047 100644
--- a/prodos/memfile.go
+++ b/prodos/memfile.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
diff --git a/prodos/text.go b/prodos/text.go
index 1e5ecd4..9bf5bf0 100644
--- a/prodos/text.go
+++ b/prodos/text.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
diff --git a/prodos/time.go b/prodos/time.go
index bb6f3e7..41a6ed5 100644
--- a/prodos/time.go
+++ b/prodos/time.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.
 
diff --git a/prodos/time_test.go b/prodos/time_test.go
index 177f034..2afd84d 100644
--- a/prodos/time_test.go
+++ b/prodos/time_test.go
@@ -1,4 +1,4 @@
-// Copyright Terence J. Boldt (c)2021-2023
+// Copyright Terence J. Boldt (c)2021-2024
 // Use of this source code is governed by an MIT
 // license that can be found in the LICENSE file.