how do you guys take the raw scan and fit it on a dvd cover, scaling the image for me wont work cos usually there is some stuff in the way eg company logos/ ratings that get cut in half when thats done? any help on how to turn a raw square pal ps1 cover (black bar on the bottom) into a dvd cover? im looking at making mine pal dvd covers since they are all that region but it duno how to do it 
If it were as simple as enlarging it to fit a DVD case, we would probably be done with the PS1 cases. Many covers don't scale well, so the procedures used vary a lot. Some covers
do scale well, so for something like the front of Crash Bandicoot 2, all I had to do was scale it, center it, and move + recreate the logos that were at the bottom.
That was a pain in the ass, and that's probably as easy as possible for CD->DVD. Other times cover artists find art similar to the art on the front cover, and use that as a base for the DVD cover, and put the logos and whatnot over it. Sometimes they just find art that fits better to a DVD case, and use that. For the back, most of the time it's just retyped in a similar font, and then the screenshots + legal information is added. Spines are pretty much 100% custom, although for PAL I guess it's just the title on a white background.