Resizing multiple episodes in batch mode -script HELP please

[Gideon25]

OK, so I have numerous episodes which are in PAL format (various Xvid and DivX) and most of them appear to be 512x384 (4:3 ratio, 25fps). I need to get them to NTSC format (4:3) dropfrme (23.976fps). I am burning them onto dvd, So its AVI-->DVD. I KNOW I can choose "edit as part of video encoding" and change the avs script to 720,480 (or whatever) and add the line "AssumeFPS(23.976)". Then I must STOP the process and reencode the fricken audio to 23.976. Now this works well if I only have a few episodes to do but I have close to 100! EACH time I am forced to stop it to change the script then stop it AGAIN in order to do the audio and keep it from muxing useless files (as the audio will never be in sync). I have read about how to do batch encoding. I can also use Ds2Roba so that it will do the correct video pulldown each time and as I understand it D2sroba will also run in batch mode. So..for batch mode I know I must stop it just after it extracts the audio and choose separate folders, etc. so the avs script is never written. So what would I need to do to tell the program:

1. I ALWAYS want it to make it 720x480 (or whatever I want)NOT 720x576. What files can I edit as part of a batch setup or prior to running the prog that will FORCE this EVERY time without my involvement? And what would the script look like? Help!

2. ALWAYS encode the audio to 25fps->23.976 fps 48000hz. What commandline is needed to do this and where do I put it, in what script or file esp. for batch processing? Can I force it do this EVERY single time without my constant involvement? Help!

Thanks for the help! I really need some kind of time saver here.