I've managed to purchase DVD Avatar Region 4 (Australia) prior to release date 29 April 2010. Details as follows:
DvdFab 7.0.4.0 - using main movie
Avatar R4 (Aus) - AR: 1.85:1, wish it was 16:9
ImgBurn - burn to disc
Blank Disc - Ritek SO4-66 8x DVD+R DL
Result: a PERFECT DVD9 copy
DvdFab 7.0.4.0 - using main movie
Avatar R4 (Aus) - AR: 1.85:1, wish it was 16:9
ImgBurn - burn to disc
Blank Disc - Ritek SO4-66 8x DVD+R DL
Result: a PERFECT DVD9 copy