+option to change the compression type used in packed resources; however, the
+\fB--pack-chunk-size\fR option may be used to set the chunk size.
+.TP
+\fB--pack-chunk-size\fR=\fISIZE\fR, \fB--solid-chunk-size\fR=\fISIZE\fR
+Like \fB--chunk-size\fR, but set the chunk size used in packed resources. The
+compression format is LZMS, so the chunk size can be any power of 2 between 2^15
+and 2^26, inclusively. WIMGAPI (Windows 8) appears to be compatible with all
+these sizes, despite not being compatible with sizes greater than 2^20 in
+non-packed resources. The default is currently 2^25 (33554432). Note:
+currently, the LZMS compression algorithm uses about 15 times the chunk size in
+memory per thread, which is about 500 MB per thread for the default pack chunk
+size of 2^25 or 1 GB per thread if you change it to 2^26 (67108864).