diff --git a/disk/diskimageappledos.go b/disk/diskimageappledos.go
index aa66c03..3a628ef 100644
--- a/disk/diskimageappledos.go
+++ b/disk/diskimageappledos.go
@@ -205,8 +205,10 @@ func (fd *FileDescriptor) TotalSectors() int {
 }
 
 func (fd *FileDescriptor) SetTotalSectors(v int) {
+	fmt.Printf("Call to set sector count to %d\n", v)
 	fd.Data[0x21] = byte(v & 0xff)
 	fd.Data[0x22] = byte(v / 0x100)
+	fmt.Printf("Sector count bytes are %d, %d\n", fd.Data[0x21], fd.Data[0x22])
 }
 
 func (fd *FileDescriptor) SetTrackSectorListStart(t, s int) {
@@ -901,6 +903,15 @@ func (dsk *DSKWrapper) AppleDOSWriteFile(name string, kind FileType, data []byte
 		return err
 	}
 
+	fmt.Printf("Writing file with type %s\n", kind.Ext())
+
+	if kind == FileTypeBIN {
+		l := len(data)
+		fmt.Printf("Length is %d\n", l)
+		header := []byte{byte(l % 256), byte(l / 256)}
+		data = append(header, data...)
+	}
+
 	if kind != FileTypeTXT {
 		header := []byte{byte(loadAddr % 256), byte(loadAddr / 256)}
 		data = append(header, data...)
@@ -932,6 +943,7 @@ func (dsk *DSKWrapper) AppleDOSWriteFile(name string, kind FileType, data []byte
 	}
 
 	// 2nd: check we can get a free catalog entry
+	sectorCount := len(dataBlocks)
 
 	// 3rd: Write the datablocks
 	var block int = 0
@@ -1010,7 +1022,8 @@ func (dsk *DSKWrapper) AppleDOSWriteFile(name string, kind FileType, data []byte
 	fd.SetName(name)
 	fd.SetTrackSectorListStart(tsBlocks[0][0], tsBlocks[0][1])
 	fd.SetType(kind)
-	fd.SetTotalSectors(len(dataBlocks))
+	fd.SetTotalSectors(sectorCount)
+	fd.Publish(dsk)
 
 	return nil
 
diff --git a/drvappledos13.go b/drvappledos13.go
index 641cf20..8be91ce 100644
--- a/drvappledos13.go
+++ b/drvappledos13.go
@@ -102,11 +102,11 @@ func analyzeDOS13(id int, dsk *disk.DSKWrapper, info *Disk) {
 			Modified: time.Now(),
 		}
 
-		_, _, data, err := dsk.AppleDOSReadFileRaw(fd)
+		size, addr, data, err := dsk.AppleDOSReadFileRaw(fd)
 		if err == nil {
 			sum := sha256.Sum256(data)
 			file.SHA256 = hex.EncodeToString(sum[:])
-			file.Size = len(data)
+			file.Size = size
 			if *ingestMode&1 == 1 {
 				if fd.Type() == disk.FileTypeAPP {
 					file.Text = disk.ApplesoftDetoks(data)
@@ -124,8 +124,8 @@ func analyzeDOS13(id int, dsk *disk.DSKWrapper, info *Disk) {
 					file.TypeCode = TypeMask_AppleDOS | TypeCode(fd.Type())
 					file.LoadAddress = 0x0000
 				} else if fd.Type() == disk.FileTypeBIN && len(data) >= 2 {
-					file.LoadAddress = int(data[0]) + 256*int(data[1])
-					file.Data = data[2:]
+					file.LoadAddress = addr
+					file.Data = data
 					file.TypeCode = TypeMask_AppleDOS | TypeCode(fd.Type())
 				} else {
 					file.LoadAddress = 0x0000
diff --git a/drvappledos16.go b/drvappledos16.go
index a1f0abb..1b98c05 100644
--- a/drvappledos16.go
+++ b/drvappledos16.go
@@ -136,11 +136,11 @@ func analyzeDOS16(id int, dsk *disk.DSKWrapper, info *Disk) {
 		}
 
 		//l.Log("start read")
-		_, _, data, err := dsk.AppleDOSReadFileRaw(fd)
+		size, addr, data, err := dsk.AppleDOSReadFileRaw(fd)
 		if err == nil {
 			sum := sha256.Sum256(data)
 			file.SHA256 = hex.EncodeToString(sum[:])
-			file.Size = len(data)
+			file.Size = size
 			if *ingestMode&1 == 1 {
 				if fd.Type() == disk.FileTypeAPP {
 					file.Text = disk.ApplesoftDetoks(data)
@@ -158,8 +158,8 @@ func analyzeDOS16(id int, dsk *disk.DSKWrapper, info *Disk) {
 					file.TypeCode = TypeMask_AppleDOS | TypeCode(fd.Type())
 					file.LoadAddress = 0x0000
 				} else if fd.Type() == disk.FileTypeBIN && len(data) >= 2 {
-					file.LoadAddress = int(data[0]) + 256*int(data[1])
-					file.Data = data[2:]
+					file.LoadAddress = addr
+					file.Data = data
 					file.TypeCode = TypeMask_AppleDOS | TypeCode(fd.Type())
 				} else {
 					file.LoadAddress = 0x0000
diff --git a/shell.go b/shell.go
index 00502ba..84d1419 100644
--- a/shell.go
+++ b/shell.go
@@ -1060,15 +1060,42 @@ func shellPut(args []string) int {
 		return 1
 	}
 
-	data, err := ioutil.ReadFile(args[0])
+	parts := strings.Split(args[0], ",")
+
+	data, err := ioutil.ReadFile(parts[0])
 	if err != nil {
 		return -1
 	}
 
+	addr := int64(0x0801)
+	name := filepath.Base(args[0])
+	reTrailAddr := regexp.MustCompile("(?i)^([^,]+)([,]A(([$]|0x)[0-9a-f]+))?([,]L(([$]|0x)[0-9a-f]+))?$")
+	if reTrailAddr.MatchString(name) {
+		m := reTrailAddr.FindAllStringSubmatch(name, -1)
+		name = m[0][1]
+		saddr := m[0][3]
+		slen := m[0][6]
+		if saddr != "" {
+			if strings.HasPrefix(saddr, "$") {
+				saddr = "0x" + saddr[1:]
+			}
+			addr, _ = strconv.ParseInt(saddr, 0, 32)
+		}
+		if slen != "" {
+			if strings.HasPrefix(slen, "$") {
+				slen = "0x" + slen[1:]
+			}
+			nlen, _ := strconv.ParseInt(slen, 0, 32)
+			if int(nlen) < len(data) {
+				data = data[:int(nlen)]
+			}
+		}
+	}
+
 	if formatIn(commandVolumes[commandTarget].Format.ID, []disk.DiskFormatID{disk.DF_DOS_SECTORS_13, disk.DF_DOS_SECTORS_16}) {
-		addr := int64(0x0801)
-		name := filepath.Base(args[0])
+
 		kind := disk.FileTypeAPP
+
 		reSpecial := regexp.MustCompile("(?i)^(.+)[#](0x[a-fA-F0-9]+)[.]([A-Za-z]+)$")
 		ext := strings.Trim(filepath.Ext(name), ".")
 		if reSpecial.MatchString(name) {
@@ -1106,8 +1133,7 @@ func shellPut(args []string) int {
 		saveDisk(commandVolumes[commandTarget], fullpath)
 
 	} else if formatIn(commandVolumes[commandTarget].Format.ID, []disk.DiskFormatID{disk.DF_PRODOS, disk.DF_PRODOS_800KB, disk.DF_PRODOS_400KB, disk.DF_PRODOS_CUSTOM}) {
-		addr := int64(0x0801)
-		name := filepath.Base(args[0])
+
 		ext := strings.Trim(filepath.Ext(name), ".")
 		reSpecial := regexp.MustCompile("(?i)^(.+)[#](0x[a-fA-F0-9]+)[.]([A-Za-z]+)$")
 		if reSpecial.MatchString(name) {