TMPG Mpeg2 Joing problems

[Ramses505]

want to join several Mpeg2 files that I have and wanted to use TMPG as it
will merge files, but it seems to insist on recoding the files at the same
time - using latest version - I go to Mpeg Tools and choose merge - add all
the files - there is a box at the top for choosing the encoding but I can
not seem to just leave all the files in their current format - Anyone know
if I can or if not is there another program that will allow this simple
feature ?

Thanks

[Marc Peters]

To "join" files, the whole video has to be re-encoded.