I have to film some interviews later next week and the client wants them in 4:3 Aspect ratio, they also said they require the footage minimum of 640 x 480

Any suggestions on how you would go about doing this? I have tried a bit of filming in 4:3 but it is in SD.

Well, your client seems to have specified SD -- 4:3 @ 640x480 pretty much fills that bill exactly ..? Your PAL shoot will give you marginally more pixels vertically, but nothing significant and you can resize to NTSC-standard 480 on export from post if that is really what they want.

Cheers,
GB

He asked if I could film it in a higher resolution than 640 x 480 if possible but I don't see how I can on the Z5

Shoot in 16:9 HD, then crop off the side so you get a 4:3 frame and export it at that resolution for him. Though, it all depends what he wants to do with it. If he's going to use it on a website at that resolution no problem, broadcasting it at that you need to downconvert it to SD..

Shoot 16:9, but make it 4:3 safe, so just leave plenty of room on each side when you shoot.
Are you shooting on MRC or onto tape?
If tape just open a DV standard project (CS5 premierpro) then export as a wmv or h264 at 640x480. I assume he wants that size as it's going on the web or an intranet.
Same with MRC - just scale to frame size in the settings and export.

Yes it is on tape and I use Edius 6.0

I was thinking about shooting 16:9 but am not sure of the exporting from Edius, I have not been using it very long.

Thanks for the help guys