if your dvd burner can set Booktype settings, DVD+R is probably the best bet since you can make them look like they are a DVD-ROM as opposed to a DVD+R.
Otherwise, grab a few of each type from good brands (Taiyo Yuden, Ritek/RiData, etc) and see what works in your box. Then just get whatever is on sale

My samsung reads pretty much everything so I just get whatever Ritek discs are on sale at the time.