Gary Tooze and others do an excellent series of Direct DVD Graphical Comparisons on DVD Beaver . They have a R1 vs R2 comparison of Life and Death of Colonel Blimp online, but not of the others listed (to be fair, the Criterion editions of Straw Dogs and the new transfer of 400 Blows--only available in the box set--haven't been released yet).
For those with multi-region capability, this is a great web resource.
For those with multi-region capability, this is a great web resource.
