Re size mpeg2 files to 720x576 quickly

[barrybear]

I purchased a freecom dv3 usb freeview tuner stick at Christmas. It captures in mpeg2 format .

The problem is that each capture is slightly different as regard the size of the frame . It captures at 2016 kbps and the frame size can very around 720x576 or more usually around 544x576. this presents a problem when creating a dvd as most of the programs want to re render the file and that takes some time.
Is there any way of quickly re rendering all the captures to 720x576 so that they can be used by the authoring program strait away.
Thanks

Barrybear

[bugster]

You can't change the actual framesize without re-encoding. You can sometimes trick a DVD authoring program into accepting non-standard frame sizes by patching the file headers with DVDpatcher. This only works on elementary streams though, so you have to de-mux the audio and video.
Another option is to use an authoring program that will accept non standard frame sizes such as DVD-Lab. This will give a warning but will still author the DVD.
If you are succesful with either of these methods you still run the risk that any particular DVD player may not play the disk correctly if at all.