good luck bro.
or just do this: pop in a a favorite dvd, rip that to your hd with DVD Decrypter, and use psp_video_9 to encode the VOB file DVDdecrypter spit out, find the right settings as for audio/video/framerate, transcode it, and find the finsihed mp4 and thm files, and put those into the ms0:/mp_root/mv4nwhatever folder, and then boot up psp and goto xmb video menu and boom you got your dvd on your psp.
you can also look for the guide here at afterdawn. right now its the top most sticky on the forum you posted this thread on. its where i learned all that, plus some experimentation on my own.. holla.
Just so you know lampro I have used that program and I think if you try out DVD Shrink you might like that better. Sometimes the movies DVD Decrypter spits out are bigger then 4.7GB's (size limit on DVD). And DVD Shrink automatically corrects that for you.
I'm sorry to be rude hexitnow but I would expect more from a senior member. In relation to the last post DVD Decrypter does not "shrink movies" so if you choose to rip the entire movie to your HD its going to take up more space than if you just ripped the main movie to your HD. DVD Shrink can "shrink" the video but is inferior at ripping the movie. I would also suggest running the downloaded movies and/or dvd disc through the PSP Video 9 program as it gives you a program with exception quality and its free.