Just to clear things up:
1. I don't plan on changing JPSX dec to decode MDEC images (PS1 cams) anytime soon, its all open source so if someone else wants to try it then go for it
Then you may beable to find secret images from PS1 games/demos
2. Recompressing AE cam files is also not something I'm gonna do, the decompressing was extremely difficult. However what I *MAY* do is write a dll that allows this (by loading a different FORMAT of cams)
3. The first version of my editor will support both games but only around 2 objects from each game will be documented, this limits the use somewhat but like the current editor you can extend this yourself if you can't wait for the next version.