diff --git a/id3/id3v2frame.cpp b/id3/id3v2frame.cpp
index 255474b..31d15ab 100644
--- a/id3/id3v2frame.cpp
+++ b/id3/id3v2frame.cpp
@@ -969,70 +969,6 @@ void Id3v2Frame::parseComment(const char *buffer, std::size_t dataSize, TagValue
     tagValue.assignData(get<0>(substr), get<1>(substr), TagDataType::Text, dataEncoding);
 }
 
-/*!
- * \brief Writes an encoding denoation and the specified string \a value to a \a buffer.
- * \param buffer Specifies the buffer.
- * \param bufferSize Specifies the size of \a buffer.
- * \param value Specifies the string to make.
- * \param encoding Specifies the encoding of the string to make.
- * \deprecated No longer used.
- * \todo Remove in v9.
- */
-void Id3v2Frame::makeString(std::unique_ptr<char[]> &buffer, std::uint32_t &bufferSize, const std::string &value, TagTextEncoding encoding)
-{
-    makeEncodingAndData(buffer, bufferSize, encoding, value.data(), value.size());
-}
-
-/*!
- * \brief Writes an encoding denoation and the specified \a data to a \a buffer.
- * \param buffer Specifies the buffer.
- * \param bufferSize Specifies the size of \a buffer.
- * \param encoding Specifies the data encoding.
- * \param data Specifies the data.
- * \param dataSize Specifies size of \a data.
- * \deprecated No longer used.
- * \todo Remove in v9.
- */
-void Id3v2Frame::makeEncodingAndData(
-    std::unique_ptr<char[]> &buffer, std::uint32_t &bufferSize, TagTextEncoding encoding, const char *data, std::size_t dataSize)
-{
-    // calculate buffer size and allocate buffer
-    if (!data) {
-        dataSize = 0;
-    }
-    if (dataSize > numeric_limits<std::uint32_t>::max() - 5) {
-        throw InvalidDataException();
-    }
-    char *bufferDataAddress;
-    switch (encoding) {
-    case TagTextEncoding::Latin1:
-    case TagTextEncoding::Utf8:
-    case TagTextEncoding::Unspecified: // assumption
-        // allocate buffer
-        buffer = make_unique<char[]>(bufferSize = static_cast<std::uint32_t>(1 + dataSize + 1));
-        buffer[0] = static_cast<char>(makeTextEncodingByte(encoding)); // set text encoding byte
-        bufferDataAddress = buffer.get() + 1;
-        break;
-    case TagTextEncoding::Utf16LittleEndian:
-    case TagTextEncoding::Utf16BigEndian:
-        // allocate buffer
-        buffer = make_unique<char[]>(bufferSize = static_cast<std::uint32_t>(1 + 2 + dataSize + 2));
-        buffer[0] = static_cast<char>(makeTextEncodingByte(encoding)); // set text encoding byte
-        CppUtilities::LE::getBytes(
-            encoding == TagTextEncoding::Utf16LittleEndian ? static_cast<std::uint16_t>(0xFEFF) : static_cast<std::uint16_t>(0xFFFE),
-            buffer.get() + 1);
-        bufferDataAddress = buffer.get() + 3;
-        break;
-    default:
-        return;
-    }
-
-    // write string data
-    if (dataSize) {
-        copy(data, data + dataSize, bufferDataAddress);
-    }
-}
-
 /*!
  * \brief Writes the BOM for the specified \a encoding to the specified \a buffer.
  * \returns Returns the number of bytes written to the buffer.
diff --git a/id3/id3v2frame.h b/id3/id3v2frame.h
index beacd6a..d7546ce 100644
--- a/id3/id3v2frame.h
+++ b/id3/id3v2frame.h
@@ -133,9 +133,6 @@ public:
     // making helper
     static std::uint8_t makeTextEncodingByte(TagTextEncoding textEncoding);
     static std::size_t makeBom(char *buffer, TagTextEncoding encoding);
-    static void makeString(std::unique_ptr<char[]> &buffer, std::uint32_t &bufferSize, const std::string &value, TagTextEncoding encoding);
-    static void makeEncodingAndData(
-        std::unique_ptr<char[]> &buffer, std::uint32_t &bufferSize, TagTextEncoding encoding, const char *data, std::size_t m_dataSize);
     static void makeLegacyPicture(
         std::unique_ptr<char[]> &buffer, std::uint32_t &bufferSize, const TagValue &picture, std::uint8_t typeInfo, Diagnostics &diag);
     static void makePicture(std::unique_ptr<char[]> &buffer, std::uint32_t &bufferSize, const TagValue &picture, std::uint8_t typeInfo,