DVD Duplicator Systems

Hello all, my first post to the forum, hoping for some guidance and help from you.

I work for a comprehensive school in the UK and have been tasked with finding a bulk duplicator system to burn DVD’s and CD’s in a number of different formats. ie. music, video, data etc.

So far I’ve come across these automatic models:

http://shop.cd-writer.com/acatalog/ALL_PRODUCTS_PRIMERA_BRAVO_2_195.html

http://shop.cd-writer.com/acatalog/ALL_PRODUCTS_PRIMERA_BRAVO_2_195.html

And these manual models:

http://shop.cd-writer.com/acatalog/ALL_PRODUCTS_CD_DVD_Duplicator_5_Drive_457.html

http://shop.cd-writer.com/acatalog/ALL_PRODUCTS_CD_DVD_Duplicator_9_Drive_459.html

We are undecided on whether the auto or manual models are best for us at the minute but would like to gain some prior non-partisan knowledge so that we could maybe contrast and compare.

So the question is, does anyone have or know of where I can find some definitive knowledge on these or similar products?

Many thanks in advance.

Les.