That this game does NOT support custom soundtracks on PS3 ?
Mycoldman (Mike Oldman) confirmed this on the game's forums.
 
Now if you guys that are planning on buying it on PS3 want this option I strongly advise that you guys vote for it:
HERE
 
Now I'm sure a lot of people would like to listen to their own music while playing this after they finished the campaign.  
And since most people are going to be buying it on the PS3 because it support videocapture and upload to youtube (which is not present on the Xbox360 version) I want you guys and gals to make your voice heard on the Just Cause forums about this!

Well, that's a serious poll with answers such as "Haha PS3 Sucks, Xbox 360 FTW". 
 
Also, since when have online petitions done jack shit?

" Well, that's a serious poll with answers such as "Haha PS3 Sucks, Xbox 360 FTW".  Also, since when have online petitions done jack shit? "

That's not urgent at all. A lot of PS3 games don't support custom soundtracks as far as I know and yes, online petitions have done nothing at all.

Nobody cares

And since most people are going to be buying it on the PS3

It's pretty strange not to implement it if they take time to implement video uploading for the PS3. Both should be about as hard to do.

You can listen to custom music on the 360?
 
Oh my...

So I just put whatever I want to listen to while playing in my stereo and crank it up. Custom soundtrack problem solved.

" @nanikore said:

" Well, that's a serious poll with answers such as "Haha PS3 Sucks, Xbox 360 FTW".  Also, since when have online petitions done jack shit? "

lol this "

yeah... these are the things we just have to accept as ps3 owners.

@ nanikore : well the community caused the devs of Just Cause to hide the red flashes in the game when something breaks!  That was a while back, but you can still see it in some videos like the vehicle stunt video documentary where rico attaches one end of the hook to a car and the other to a statue and the statue falls and flashes red upon breaking on the ground. Now that is gone, thanks to the community I thought this might get the same attention, it seems I was wrong, wrooooooong *cartman*

Question: do people actually use custom soundtracks on games other than racing or sports titles? I mean - seriously? Do people play shitty music over Dead Space and stuff? And if so, what's wrong with you?
 
The developers have teams working for them crafting an audio experience that compliments the game. It blows my mind that people just play music over that.
 
Whatever, your game, your time, I guess.

" Question: do people actually use custom soundtracks on games other than racing or sports titles? I mean - seriously? Do people play shitty music over Dead Space and stuff? And if so, what's wrong with you?  The developers have teams working for them crafting an audio experience that compliments the game. It blows my mind that people just play music over that.  Whatever, your game, your time, I guess. "

" Question: do people actually use custom soundtracks on games other than racing or sports titles? I mean - seriously? Do people play shitty music over Dead Space and stuff? And if so, what's wrong with you?  The developers have teams working for them crafting an audio experience that compliments the game. It blows my mind that people just play music over that.  Whatever, your game, your time, I guess. "

It's official, Just Cause 2 on PS3 sucks :(

Custom soundtracks! really? who the fuck cares. 
 
On a side note the PS3 version was going to have a exclusive video recording feature, allowing up to 30 seconds of video to be recorded, is this still in it?.

" Custom soundtracks! really? who the fuck cares.  On a side note the PS3 version was going to have a exclusive video recording feature, allowing up to 30 seconds of video to be recorded, is this still in it?. "