simpsons treehouse of horrors epi 1-20

could someone gather all the simpsons treehouse of horror epis in just one format please?ive gathered all from everywhere but cant get one clear copy burnt to disk.some problems are with epis 10-15 they are in mpeg format and just have a vertical 'roll' which renders them unwatchable.i use devede to convert all to isos and most do fine.ive used devede media conversion without fail on all other movies,cartoon,etc.ive tried to get a clear copy since last halloween,and all copies look clear when viewing on comp monitor,but after all the effort of typing up the menus,etc...its a lot of time wasted to see the end product ruined ...can someone help,please?thanks....