The first time you run Aspirator you must do some first configurations :
Make sure Codecs are well detected. When Aspirator has launch click on the Codec button. You mus see this :
Some radio buttons such 4.xx 5.xx or Xvid must be enable, if not be sure some codecs are really installed on your system ... Click on see codec to be sure all work.
Don't worry about flashing codecs, it's normal but sometimes i noticed a bug with Divx 5.x.x codecs, the window flash and dessapear when you click on See Codec. This seems to happen only the first time you run Aspirator, so if it's your case, close and restart Aspirator.
Enter Nandub Path. first you must install Nandub, if you don't have it you can download it there. For those who already got Nandub, just a little info. When you load an AC3 file, there's a Message Box that can stop an automatic process. So i disable this feature (Nandub is open source) this link gives you the moded version. But if you don't work with AC3 files it's not needed. Then run Aspirator and Click on the Misc button ... you'll get that :
You must enter Nandub path to enable multiplex feature (ie merging audio and video files to finalize movie). Click on Change and then select the file Nandub.exe where you install Nandub. That's it.
Enable Authentication : authentication is a DVD protection (very week indeed). Some drivers do not allows DVD to be read before authentication. Any DVD player can authenticate a DVD (power DVD) so if the DVD is stuck Aspirator will ask you to authenticate manually. But there's a way to make Aspirator able to authenticate by himself all DVD (even if your DVD drive is not region free, you 'll be able to rip DVD of all regions). First install CDRWIN 3.9, then install those aspi drivers. Restart your computer it should now work.