I'm new here...
Just updated to the new 220.127.116.11 version of DVDfab Platinum and i'm constantly geting the above error message:
Task_1 failed! Error=4(504 4 Encode_video **********)
I've done a search on this problem on this forum and found the only real solution is to reduce memory option to normal or low, as auto high and max fail.
I'm running 8gb of memory on a 64bit system....I am not short on memory and therefore shouldn't have to reduce memory usage or suffer with a much slower encode time.
I'm converting DVD to Mobile: generic: xvid,mp3.