i encountered the same ERROR-10056, and here's how i fixed it!
1. im using a windows XP system (still the best IMO--yeah apple is better i know....)
2. im using 3.2U downgraded from 3.4U with cISO's.
3. I was using Internet ExploDer 7 (BIG MISTAKE!)
4. also using dvd dumper 1.2
i couldnt get the dern thing to work, so i went to the previous version like diskgolfer suggested, (BTW been playing disc golf for over 15 years! Fav disk: ROC) After rolling back the version, i couldnt get it to even show up on homebrew menu, WHOOPS! fixed that by remaning the file to boot.dol
Then it showed up in IE7 but when i clicked on link id game me error message (INVALID HEADERS) how did i fix this you axe?
search for OPERA browser if you dont have it already. it works and im ripping iso's like i was born to do it!!!!