Well I got a certified letter from the court saying that they had no records concerning me or my driving. Any letter from the court is certified (the raised seal).
I got an original printout from the DMV with a stamp just noting that my driving record was in good standing. I also got a driving record but that just says it is certified at the bottom. They do not certify documents (with seals) at my DMV so I think the original document should be enough. Plus I don't have any serious or criminal driving incidents. In NY the court only gives dispositions for driving offenses that led to an arrest or some sort of conviction.