SD resolutions for BDrips.

576p Resolutions for BDrips:

Aspect Ratio       Resolution
1.333:1            768x576
1.666:1            960x576
1.777:1            1024x576
1.790:1            1024x572
1.828:1            1024x560
1.842:1            1024x556
1.855:1            1024x552
2.306:1            1024x444
2.327:1            1024x440
2.348:1            1024x436
2.370:1            1024x432
2.392:1            1024x428
2.415:1            1024x424
2.438:1	           1024x420
2.461:1            1024x416

These resolutions are based on mod 4 cropping. When mod 2 cropping is used just use a value in between the posted ones.