go on pspgen.com using google translate, and you will find any gen programs you need, yes there is a umd dumper, infact I think theres one that intregates into the xmb...
EDIT: this isnt the one i meant but its a basic umd dumper for GEN anyways
http://www.pspgen.com/umd-dump-copie...te-183878.html copy that url into google translate if u cnt read french