Well I try not to ask for help since I normally have the patience to figure it out myself.  But thanks to Premiere I am incredibly pissed off, and I'm out of town most of tomorrow so I was hoping that by asking here I may have some possible solutions by the time I get back.

The problem I'm having is with a custom gameboot I am trying to make, it is just a blank white screen and I can't seem to fix that.  I coudn't find many guides online so I mainly followed this one: http://psp3d.com/homebrew-hacking/10261-...hread.html.  I'll do a walk through of all the steps I took so it is easier to spot any clear mistakes I made.

1. I ripped the video from an original DVD then encoded it to an uncompressed AVI with uncompressed WAV audio.

2. I edited it in Premiere to exactly 3 seconds then encoded the video again to an uncompressed AVI (Microsoft AVI, 29.97 FPS, Millions+ colours, 480x272, Square Pixels (1.0)), and encoded the audio as an uncomprssed WAV into a seperate file (Windows Waveform, 44100 Hz, 16-bit, Stereo).

3. I made a new project in UMD Stream Composer, I checked the "PSP Movie Format (for game)" box and set the "Max Clip Size" to 2000MB.  Then imported both files and ran it through using "Encode + Multiplex".

4. I ran the MPS through the MPStoPMF converter.

5. I flashed it and when I tried to run a game the gameboot was just a blank white screen.

The gameboot I ended up with was 404kb and I have more than enough space on my flash for that.  But I tried editing the clip shorter to see if that was the problem, after shortening it to under 2 seconds (file size: 276kb) and ending up with the same result I decided to try and find a cause for this problem.  All I could find online was "the gameboot is corrupted" with no explanation as to why or how to fix it, or "there isn't enough space in flash".  I plan to use the gameboot in a theme I'm making, so I'd rather not upload the files.  But if there aren't any working ideas after a little while (probably when I get back tomorrow night) then I might upload the 3 second versions of my clips so someone else can take a look at them.