.TP
\fB--recompress-slow\fR, \fB--compress-slow\fR
Spend even more time compressing the data in order to achieve a more optimal
-compression ratio. This only affects LZX-compressed WIM files. Compared to the
-default \fB--recompress\fR, this will make compression about twice as slow and
-will increase the compression ratio by maybe 1%, depending on the data.
+compression ratio. Compared to the default \fB--recompress\fR, this will make
+compression about twice as slow and will increase the compression ratio by maybe
+1%, depending on the data. This option implies \fB--recompress\fR and
+\fB--compress\fR=\fImaximum\fR (recompress using LZX compression).
.TP
\fB--compress\fR=\fITYPE\fR
Recompress the WIM file using the specified compression type. \fITYPE\fR may be
"none", "fast", or "maximum". This implies \fB--recompress\fR.
.TP
+\fB--chunk-size\fR=\fISIZE\fR
+Set the WIM compression chunk size to \fISIZE\fR. Using this option is not
+recommended because WIM chunk sizes other than the default of 32768 are not
+supported by Microsoft's software. But if you decide to use this option
+regardless, you can choose a chunk size that is any power of 2 greater than or
+equal to 2^15 (32768) up to 2^21 (2097152) for LZX ("maximum") compression or
+2^26 (67108864) for XPRESS ("fast") compression. Larger chunks mean larger LZ77
+dictionaries and better compression ratios on sufficiently large files, but
+slower random access.
+.TP
\fB--threads\fR=\fINUM_THREADS\fR
Number of threads to use for compressing data. Default: autodetect (number of
processors). This parameter is only meaningful when \fB--recompress\fR is also