dvd pixelated from mts footage, assistance req...

i have mts (25fps, 1440x1080 16:9) footage from my sony hd video camera, i have dragged it into encore and tried some various settings by researching the web but the resulting (pal) dvds are pixlated, i need top dog quality. i would be really grateful of some help please, i am new to adobe (ex fcp) and i am finding it hard work. oh i use a mac