For storage? Unlikely. For compatibility there has been an issue that some DVD players like plus, some minus. No database exists that is worthwhile to help you figure it out.
If long term storage is your goal, read http://www.itl.nist.gov/div895/carefordisc/CDandDVDCareandHandlingGuide.pdf
I was wondering, is there any difference between the + and the - for DVD storage?