Valid values: | HC or BT |
Default value: | HC if the LZMA compression level is set to fast BT otherwise |
Controls the match finder method used by the LZMA and LZMA2 compressors.
A value of HC enables the Hash Chain method with 4 hash bytes.
A value of BT enables the Binary Tree method with 4 hash bytes.
The Binary Tree method can provide a better compression ratio at the expense of compression speed.