I may not have access to the latest setup code lists for the URC3300, but the pickings are pretty slim. You should try Video code 0060 and 0202. In each case of trying a setup code, look to see if the remote blinks twice after you enter the setup code. If it doesn't blink twice, probably that setup code isn't buit-in to the remote.

I hope that your remote has Video 0522 (or 0822, 0880). Also check to see if it has Video 1022 or 1060. 0522 is the mostly likely to control your DVD, and 1022/1060 have enough flexibility so that we can try individual button codes until you lose patience. So tell us if any of those code blink back twice.