I need to check with the QA team regarding the two BUGs you reported, thanks. 
Mona
Thank you Mona, you guys are the best!
Confirmed with 13.0.0.1:
1) default output folder... fixed!
2) Bit Rate getting changed when more than 1 task... fixed!
3) The GUI suggestion to have Fab take up less space... fixed!
At this point, I just switched from Fab 12 to Fab 13 as my main program.
As I said - you guys are the best! :)