Can some one please tell me how dvd shrink compresses files,
Is there a ripper that creates the 1/2 size dvd format 352X576,
Its all done quickly, with fog & mirrors 
This is a very complex issue, suggest you start with some reading on their homesite.
Is there a ripper that creates the 1/2 size dvd format 352X576,
Both DVD ReBuilder (for extras only) and DVD2SVCD have 1/2 D1 options.
Thankyou for your assistance.