Searching for hi-res cart scans (tg16/pce/sgx)

[dark13]

I made a supergrafx swf/png cartridges set, you can download from http://emumovies.com/forums/index.php/files/file/1170-supergrafx-3d-cartridges-hyperlist-animated-swf-and-png/

I would like to make a full tg16/pce set but actually i can't find hi-res scans of cart. Boxarts are quite easy to find but seems there's no hi-res scans of many cart, and moreover scans I found are plagued with jpg compression, jpg compression become a nightmare once you render the image as texture.

So the question is... is it possible to find some decent scans of cart's images? Using 640*553 texture for game art on carts.

Thanks in advance