Splitting mpg to audio/video

[the_artistic]

Is there a program that can strip a .mpg file into the extact audio/video streams without rencoding them?

I want to replicate the mpg exactly and every program I've looked at will not do this.

[jggimi]

TMPGEnc (http://www.tmpgenc.net/e_download.html) can be used. Doom9 has a guide (http://www.doom9.org/mpg/tmpg_procedures.htm).