if err == io.EOF && !r.readOneFrame {
			err = io.ErrUnexpectedEOF
		}
		return r.wrapError(relativeOffset, err)
	}

	if magic := binary.LittleEndian.Uint32(r.scratch[:4]); magic != 0xfd2fb528 {
		if magic >= 0x184d2a50 && magic <= 0x184d2a5f {
			// This is a skippable frame.
			r.blockOffset += int64(relativeOffset) + 4
			if err := r.skipFrame(); err != nil {
				return err
			}

    <_comment>https://en.wikipedia.org/wiki/Zstandard</_comment>
    <_comment>https://tools.ietf.org/id/draft-kucherawy-dispatch-zstd-01.html</_comment>
    <magic priority="50">
      <match value="0xFD2FB528" type="little32" offset="0"/>
    </magic>
    <glob pattern="*.zst"/>
  </mime-type>
  <mime-type type="application/x-esri-layer">
    <_comment>ESRI Layer file</_comment>