I've just finished watching 4.5 hours of M-B video - the "Faszination" 2-DVD set from M-B Classic.
I've seen it advertised on a few Benz sites, but all that was offered was either the German-language PAL version (superior picture quality but useless if you don't know German) or the English-language NTSC version (inferior picture quality and incompatible with some DVD players in Oz).
There's some great eye candy on it; I recommend it to any Benz enthusiast - even if it is marginally propagandistic and tends to gloss over or minimise a few known negative issues of M-B history.
It covers all series from 1896 to 2004, including racing, experimental models, and the new museum.
At 29 Euros it's not bad value. Be warned, however, that if you buy it from M-B via a web site, they will slug you an EXTRA! 30 Euros for packing and postage.
A friend bought mine for me and posted it from Germany for 4.5 Euros.