A very impressive dictionary - hardly justifies 'shorter'. I have the full unabridged OED on CD at work and bought this version for my own use at home. I've found the shorter version just as good in practice. The search and hyperlinking facilities are good, better than on the full version in mt view and of course even those can't be compared to using the reference on paper, which will surely become a lost art before long. (At a full bookshelf's worth of paper the unabridged OED doesn't even have the usual 'you can read it in the bath' benefit of printed books when compared to CDs - it wouldn't even fit in my bath).

All in all I rate this as the best dictionary available in its price range - in any format.