Which format? Simple camera? *groan!*

I am faced with a dilemma:

We have some business centers in Europe and S.America. We need to have a way for our centers to record 10-15 minute clips of subjects being interviewed (for training purposes), send these clips here (to the USA), view, then archive the footage (which may or may not be used for DVD later on).

I am totally at a loss about:

What format to request the footage in? I need to be able to edit and have it be decent quality (SD, HD not necessary). I'd like NTSC so I have the option to downsample to PAL...BUT:

I'm thinking back to some heinous footage that I had to deal with that was shot in Europe (with NTSC camera) but incorrect shutter speed...oh, what an ugly mess. I'd like to avoid this issue, but how to find a simple setup/routine when the folks recording are NOT professionals?

I figure they can air-mail me the data on hard-drives when collected.

Any insights? I've been pawing through forum posts/online and can't find much info.

Alas, I still have to supply centers with NTSC and PAL DVDs...not every country has the latest in computers, viewing equipment, or even internet connections :O)

Thank you for your response.