What's your problem abour +R discs? If your burner does burn them you have no probs.
Ok bitsetting can improve compatibility as they are seen as DVD-Rom discs, but most present players can play them (maybe some topset devices don't, but its becoming a rare situation) and if your friends gave you the discs they are suposed to be able touse them.
I've only a "stupid" DVD-Rom drive that can't read +R, as my home players have no prob about.
About your other question - you fix the bitsetting before you record the disc as zebadee indicated before..
If you use Nero you will have no problem, but there are other packages and even software that uses to come with the drives.
This used to be an issue sometime ago, with discussions going on about the better discs (with +R and +R supporters showing strong positions), but these seem to be passed days, and as Kerry 56 told you your drive does bitsetting as a original feature.