Benefits of res higher than 720?

[Backflip]

Say I have a short movie like The Transporter or Phonebooth (standard DVD's), and I want to make an encode to 2 x 700MB XviD, including 6CH AC3. Their b/p is quite high at that size even with a 720x*** resolution.

Question is - would there be any benefit going over 720 to perhaps 768 or a number around there?

[eb]

best way is to keep source matrix

[CWR03]

There's no benefit at all by going to a larger aspect. The only possibility might be if your horizontal aspect is reduced by maintaining width of 720, in which case you could increase it only enough to keep the height at its original size. It would only make a difference in a situation like that; simply stretching a source will get you no more quality, in fact forcing the program to stretch the pixels improperly could make for some ugly artifacts.

[E-Male]

if you do sharpening or anythign supersampled this might be a godo idea
if not, i'd just encode it at at original resolution and fix the AR with matroska-options