It's Been a while Since i made an update to precomp let alone praise it.
precomp 048 isn't available to public, unless you download the source from github and compile yourself. It's current state is early Beta i think.
Here is a sample Photo of Syberia 1 pack with jpg streams mp3 streams and zlib streams.
precomp047 Alpha took an astonishing 1 and half hours to complete the task while precomp048 took 2 minutes.
precomp 048 posted here is compiled by me with speed options all maxed out
you can also find CLS-precomp and precomp048 to my Mask Additions.