mpg's display aspect ratio

[jujiananren]

I wanna change a mpg (mpeg1 video) file's display aspect ratio without Re-encoding.I've tried restream and DVD Patcher,both of which can handle mpeg2 well but can't handle mpeg1 correctly (wrong display aspect ratio) .Is there any software to handle this?

[Inspector.Gadget]

Demux and use restream then remux. Or use DVD Patcher.

[jujiananren]

Demux and use restream then remux. Or use DVD Patcher.

thanks but new problem appears.i've edit the thread.

[Placio74]

Can try MpgTx.